bug#10300: 24.0.92; 'diff-show-trailing-whitespaces' command

[Dani Moncayo]

Last paragraph of (info "(emacs)Diff Mode") says:

 `M-x diff-show-trailing-whitespaces RET'
      Highlight trailing whitespace characters, except for those used by
      the patch syntax (*note Useless Whitespace::).


But that command is not available (at least for me) from a *Diff*
buffer (from emacs -Q).


In GNU Emacs 24.0.92.1 (i386-mingw-nt6.1.7601)
 of 2011-12-10 on DANI-PC
Windowing system distributor `Microsoft Corp.', version 6.1.7601
configured using `configure --with-gcc (4.6) --no-opt --cflags
-fno-omit-frame-pointer'

-- 
Dani Moncayo