Remove $Id$ tags, update URL's, and more

- remove obsolete svn '$Id$' tags from all source files
- update .fl files and generated files accordingly
- replace 'http://www.fltk.org' URL's with 'https://...'
- replace bug report URL 'str.php' with 'bugs.php'
- remove trailing whitespace
- fix other whitespace errors flagged by Git
- add and/or fix missing or wrong standard headers
- convert tabs to spaces in all source files

The only relevant code changes are in the fluid/ folder where
some .fl files and other source files were used to generate
the '$Id' headers and footers.

8 files changed, 26 insertions, 78 deletions

diff --git a/src/drivers/Pico/Fl_Pico_Graphics_Driver.H b/src/drivers/Pico/Fl_Pico_Graphics_Driver.H
index 354472ee0..93550f80c 100644
--- a/src/drivers/Pico/Fl_Pico_Graphics_Driver.H
+++ b/src/drivers/Pico/Fl_Pico_Graphics_Driver.H
@@ -1,6 +1,4 @@
 //
-// "$Id$"
-//
 // Definition of the Pico minimal graphics driver
 // for the Fast Light Tool Kit (FLTK).
 //
@@ -10,11 +8,11 @@
 // the file "COPYING" which should have been included with this file.  If this
 // file is missing or damaged, see the license at:
 //
-//     http://www.fltk.org/COPYING.php
+//     https://www.fltk.org/COPYING.php
 //
-// Please report all bugs and problems on the following page:
+// Please see the following page on how to report bugs and issues:
 //
-//     http://www.fltk.org/str.php
+//     https://www.fltk.org/bugs.php
 //
 
 /**
@@ -211,7 +209,3 @@ class Fl_Pico_Graphics_Driver : public Fl_Graphics_Driver {
 };
 
 #endif // FL_PICO_GRAPHICS_DRIVER_H
-
-//
-// End of "$Id$".
-//
diff --git a/src/drivers/Pico/Fl_Pico_Graphics_Driver.cxx b/src/drivers/Pico/Fl_Pico_Graphics_Driver.cxx
index ace311323..f6f306e78 100644
--- a/src/drivers/Pico/Fl_Pico_Graphics_Driver.cxx
+++ b/src/drivers/Pico/Fl_Pico_Graphics_Driver.cxx
@@ -1,6 +1,4 @@
 //
-// "$Id$"
-//
 // Rectangle drawing routines for the Fast Light Tool Kit (FLTK).
 //
 // Copyright 1998-2020 by Bill Spitzak and others.
@@ -9,11 +7,11 @@
 // the file "COPYING" which should have been included with this file.  If this
 // file is missing or damaged, see the license at:
 //
-//     http://www.fltk.org/COPYING.php
+//     https://www.fltk.org/COPYING.php
 //
-// Please report all bugs and problems on the following page:
+// Please see the following page on how to report bugs and issues:
 //
-//     http://www.fltk.org/str.php
+//     https://www.fltk.org/bugs.php
 //
 
 
@@ -335,8 +333,8 @@ void Fl_Pico_Graphics_Driver::circle(double x, double y, double r)
   int i = segs;
 
   if (i) {
-    double epsilon = A/i;			// Arc length for equal-size steps
-    double cos_e = cos(epsilon);	// Rotation coefficients
+    double epsilon = A/i;                       // Arc length for equal-size steps
+    double cos_e = cos(epsilon);        // Rotation coefficients
     double sin_e = sin(epsilon);
     do {
       double Xnew =  cos_e*X + sin_e*Y;
@@ -506,9 +504,3 @@ void Fl_Pico_Graphics_Driver::draw(const char *str, int n, int x, int y)
     x += size_*0.5;
   }
 }
-
-
-
-//
-// End of "$Id$".
-//
diff --git a/src/drivers/Pico/Fl_Pico_Screen_Driver.H b/src/drivers/Pico/Fl_Pico_Screen_Driver.H
index 5c4126668..7f03cb60f 100644
--- a/src/drivers/Pico/Fl_Pico_Screen_Driver.H
+++ b/src/drivers/Pico/Fl_Pico_Screen_Driver.H
@@ -1,6 +1,4 @@
 //
-// "$Id$"
-//
 // Definition of Pico Screen interface
 // for the Fast Light Tool Kit (FLTK).
 //
@@ -10,11 +8,11 @@
 // the file "COPYING" which should have been included with this file.  If this
 // file is missing or damaged, see the license at:
 //
-//     http://www.fltk.org/COPYING.php
+//     https://www.fltk.org/COPYING.php
 //
-// Please report all bugs and problems on the following page:
+// Please see the following page on how to report bugs and issues:
 //
-//     http://www.fltk.org/str.php
+//     https://www.fltk.org/bugs.php
 //
 
 /**
@@ -58,7 +56,3 @@ public:
 
 
 #endif // FL_PICO_SCREEN_DRIVER_H
-
-//
-// End of "$Id$".
-//
diff --git a/src/drivers/Pico/Fl_Pico_Screen_Driver.cxx b/src/drivers/Pico/Fl_Pico_Screen_Driver.cxx
index 912e92144..9b316c92f 100644
--- a/src/drivers/Pico/Fl_Pico_Screen_Driver.cxx
+++ b/src/drivers/Pico/Fl_Pico_Screen_Driver.cxx
@@ -1,6 +1,4 @@
 //
-// "$Id$"
-//
 // Definition of SDL Screen interface based on Pico
 //
 // Copyright 1998-2016 by Bill Spitzak and others.
@@ -9,11 +7,11 @@
 // the file "COPYING" which should have been included with this file.  If this
 // file is missing or damaged, see the license at:
 //
-//     http://www.fltk.org/COPYING.php
+//     https://www.fltk.org/COPYING.php
 //
-// Please report all bugs and problems on the following page:
+// Please see the following page on how to report bugs and issues:
 //
-//     http://www.fltk.org/str.php
+//     https://www.fltk.org/bugs.php
 //
 
 
@@ -132,8 +130,3 @@ int Fl_Pico_Screen_Driver::has_timeout(Fl_Timeout_Handler cb, void *argp)
 void Fl_Pico_Screen_Driver::remove_timeout(Fl_Timeout_Handler cb, void *argp)
 {
 }
-
-
-//
-// End of "$Id$".
-//
diff --git a/src/drivers/Pico/Fl_Pico_System_Driver.H b/src/drivers/Pico/Fl_Pico_System_Driver.H
index 740ceceb1..5e3551b4c 100644
--- a/src/drivers/Pico/Fl_Pico_System_Driver.H
+++ b/src/drivers/Pico/Fl_Pico_System_Driver.H
@@ -1,6 +1,4 @@
 //
-// "$Id$"
-//
 // Definition of Pico system driver
 // for the Fast Light Tool Kit (FLTK).
 //
@@ -10,11 +8,11 @@
 // the file "COPYING" which should have been included with this file.  If this
 // file is missing or damaged, see the license at:
 //
-//     http://www.fltk.org/COPYING.php
+//     https://www.fltk.org/COPYING.php
 //
-// Please report all bugs and problems on the following page:
+// Please see the following page on how to report bugs and issues:
 //
-//     http://www.fltk.org/str.php
+//     https://www.fltk.org/bugs.php
 //
 
 #ifndef FL_PICO_SYSTEM_DRIVER_H
@@ -32,7 +30,3 @@ public:
 };
 
 #endif /* FL_PICO_SYSTEM_DRIVER_H */
-
-//
-// End of "$Id$".
-//
diff --git a/src/drivers/Pico/Fl_Pico_System_Driver.cxx b/src/drivers/Pico/Fl_Pico_System_Driver.cxx
index 59ace9ec4..1dfb262ab 100644
--- a/src/drivers/Pico/Fl_Pico_System_Driver.cxx
+++ b/src/drivers/Pico/Fl_Pico_System_Driver.cxx
@@ -1,6 +1,4 @@
 //
-// "$Id$"
-//
 // Definition of Pico system driver
 // for the Fast Light Tool Kit (FLTK).
 //
@@ -10,17 +8,12 @@
 // the file "COPYING" which should have been included with this file.  If this
 // file is missing or damaged, see the license at:
 //
-//     http://www.fltk.org/COPYING.php
+//     https://www.fltk.org/COPYING.php
 //
-// Please report all bugs and problems on the following page:
+// Please see the following page on how to report bugs and issues:
 //
-//     http://www.fltk.org/str.php
+//     https://www.fltk.org/bugs.php
 //
 
 #include "Fl_Pico_System_Driver.H"
 #include "../../flstring.h"
-
-
-//
-// End of "$Id$".
-//
diff --git a/src/drivers/Pico/Fl_Pico_Window_Driver.H b/src/drivers/Pico/Fl_Pico_Window_Driver.H
index 73b361a18..9601852bb 100644
--- a/src/drivers/Pico/Fl_Pico_Window_Driver.H
+++ b/src/drivers/Pico/Fl_Pico_Window_Driver.H
@@ -1,6 +1,4 @@
 //
-// "$Id$"
-//
 // Definition of Pico Window interface
 // for the Fast Light Tool Kit (FLTK).
 //
@@ -10,11 +8,11 @@
 // the file "COPYING" which should have been included with this file.  If this
 // file is missing or damaged, see the license at:
 //
-//     http://www.fltk.org/COPYING.php
+//     https://www.fltk.org/COPYING.php
 //
-// Please report all bugs and problems on the following page:
+// Please see the following page on how to report bugs and issues:
 //
-//     http://www.fltk.org/str.php
+//     https://www.fltk.org/bugs.php
 //
 
 /**
@@ -41,7 +39,3 @@ public:
 
 
 #endif // FL_PICO_WINDOW_DRIVER_H
-
-//
-// End of "$Id$".
-//
diff --git a/src/drivers/Pico/Fl_Pico_Window_Driver.cxx b/src/drivers/Pico/Fl_Pico_Window_Driver.cxx
index a9b7034af..bbff4c6aa 100644
--- a/src/drivers/Pico/Fl_Pico_Window_Driver.cxx
+++ b/src/drivers/Pico/Fl_Pico_Window_Driver.cxx
@@ -1,6 +1,4 @@
 //
-// "$Id$"
-//
 // Definition of SDL Window interface based on Pico
 //
 // Copyright 1998-2018 by Bill Spitzak and others.
@@ -9,11 +7,11 @@
 // the file "COPYING" which should have been included with this file.  If this
 // file is missing or damaged, see the license at:
 //
-//     http://www.fltk.org/COPYING.php
+//     https://www.fltk.org/COPYING.php
 //
-// Please report all bugs and problems on the following page:
+// Please see the following page on how to report bugs and issues:
 //
-//     http://www.fltk.org/str.php
+//     https://www.fltk.org/bugs.php
 //
 
 
@@ -46,7 +44,3 @@ int Fl_Pico_Window_Driver::decorated_h()
 {
   return h();
 }
-
-//
-// End of "$Id$".
-//
\ No newline at end of file