[RFA] gdb.texinfo: Use GNU/Linux instead of Linux

[Kevin Buettner <kevinb@redhat.com>]

While making the changes that Eli recommended to Jim's charset
documentation, I noticed some uses of Linux without the GNU/ prefix. 
I assume that this is okay, but I wanted to check with Eli on the use
of @sc{gnu}.  There seem to be uses of plain "GNU" in the docs and
other uses where @sc{gnu} is preferred.  I don't understand the pros
and cons of each, so I thought I'd send check with Eli before
committing...

	* gdb.texinfo: Use GNU/Linux instead of Linux.

Index: gdb.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v
retrieving revision 1.124
diff -u -p -r1.124 gdb.texinfo
--- gdb.texinfo	21 Sep 2002 00:29:04 -0000	1.124
+++ gdb.texinfo	21 Sep 2002 00:36:41 -0000
@@ -395,7 +395,7 @@ Tim Tucker contributed support for the G
 Pace Willison contributed Intel 386 support.
 Jay Vosburgh contributed Symmetry support.
 
-Andreas Schwab contributed M68K Linux support.
+Andreas Schwab contributed M68K @sc{gnu}/Linux support.
 
 Rich Schaefer and Peter Schauer helped with support of SunOS shared
 libraries.
@@ -2622,7 +2622,7 @@ times slower than normal execution.  (Bu
 catch errors where you have no clue what part of your program is the
 culprit.)
 
-On some systems, such as HP-UX, Linux and some other x86-based targets,
+On some systems, such as HP-UX, @sc{gnu}/Linux and some other x86-based targets,
 @value{GDBN} includes support for
 hardware watchpoints, which do not slow down the running of your
 program.
@@ -11196,7 +11196,7 @@ this facility, the command @code{info pr
 several kinds of information about the process running your program.
 @code{info proc} works only on SVR4 systems that include the
 @code{procfs} code.  This includes OSF/1 (Digital Unix), Solaris, Irix,
-and Unixware, but not HP-UX or Linux, for example.
+and Unixware, but not HP-UX or @sc{gnu}/Linux, for example.
 
 @table @code
 @kindex info proc