[PATCH] fix doc formatting

[Bob Wilson <bwilson at tensilica dot com>]

A few changes related to use of texinfo macros....

In the "Help" section, the forced line break causes the Info output to be 
garbled and I can't see any reason for it -- the Info, HTML and PDF outputs all 
look fine to me without it.

In that same section, some of the sample output lines have been wrapped to fit 
in the @smallbook format.  The indentation for the wrapped lines is inconsistent 
and makes the text hard to read.  I changed the indentation to look nice, which 
doesn't match the real unwrapped output from GDB but at least is easier to read.

The other changes should be obvious.

2007-03-23  Bob Wilson  <bob.wilson@acm.org>
	
	* gdb.texinfo (Help): Fix formatting of examples.
	(Variables): Use @ifnotinfo instead of @iftex.
	(Non-debug DLL symbols): Use @ref instead of @pxref.
	(Sparclet File): Use @samp instead of quotes.
	

Index: gdb.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v
retrieving revision 1.389
diff -u -r1.389 gdb.texinfo
--- gdb.texinfo	26 Feb 2007 20:10:17 -0000	1.389
+++ gdb.texinfo	23 Mar 2007 23:23:51 -0000
@@ -1572,7 +1572,7 @@
 stack -- Examining the stack
 status -- Status inquiries
 support -- Support facilities
-tracepoints -- Tracing of program execution without@*
+tracepoints -- Tracing of program execution without
                stopping the program
 user-defined -- User-defined commands
 
@@ -1599,9 +1599,9 @@
 @c Line break in "show" line falsifies real output, but needed
 @c to fit in smallbook page size.
 info -- Generic command for showing things
- about the program being debugged
+        about the program being debugged
 show -- Generic command for showing things
- about the debugger
+        about the debugger
 
 Type "help" followed by command name for full
 documentation.
@@ -1629,9 +1629,9 @@
 @smallexample
 @c @group
 set symbol-reloading -- Set dynamic symbol table reloading
-                                 multiple times in one run
+                        multiple times in one run
 show symbol-reloading -- Show dynamic symbol table reloading
-                                 multiple times in one run
+                        multiple times in one run
 @c @end group
 @end smallexample
 
@@ -5556,10 +5556,10 @@
 using the colon-colon (@code{::}) notation:
 
 @cindex colon-colon, context for variables/functions
-@iftex
+@ifnotinfo
 @c info cannot cope with a :: index entry, but why deprive hard copy readers?
 @cindex @code{::}, context for variables/functions
-@end iftex
+@end ifnotinfo
 @smallexample
 @var{file}::@var{variable}
 @var{function}::@var{variable}
@@ -13804,8 +13804,8 @@
 start the program --- either by setting a breakpoint or letting the
 program run once to completion. It is also possible to force
 @value{GDBN} to load a particular DLL before starting the executable ---
-see the shared library information in @pxref{Files} or the
-@code{dll-symbols} command in @pxref{Cygwin Native}. Currently,
+see the shared library information in @ref{Files}, or the
+@code{dll-symbols} command in @ref{Cygwin Native}. Currently,
 explicitly loading symbols from a DLL with no debugging information will
 cause the symbol names to be duplicated in @value{GDBN}'s lookup table,
 which may adversely affect symbol lookup performance.
@@ -15242,7 +15242,7 @@
 @value{GDBN} locates
 the file by searching the directories listed in the command search
 path.
-If the file was compiled with debug information (option "-g"), source
+If the file was compiled with debug information (option @samp{-g}), source
 files will be searched as well.
 @value{GDBN} locates
 the source files by searching the directories listed in the directory search