bug#12674: 24.2.50; doc of `locate-file'

[Drew Adams]

The description in the Elisp manual is fine.  The doc string is
generally OK, except for its second sentence.  This part of the second
sentence is not clear (meaningless, misleading): ", with its suffixes".
 
It's unclear what that might mean (return the absolute file name, plus a
list of its suffixes?).  But it certainly cannot mean what really
happens: the absolute file name is returned, including ONE of the
suffixes if appropriate.
 
Just say what the manual says: the absolute file name is returned:
 
 If it finds such a file, it returns the file's absolute file name;
 otherwise it returns `nil'.

In GNU Emacs 24.2.50.1 (i386-mingw-nt5.1.2600)
 of 2012-10-15 on DANI-PC
Bzr revision: 110553 monnier@iro.umontreal.ca-20121015164957-6zms5w2js1xkldtg
Windowing system distributor `Microsoft Corp.', version 5.1.2600
Configured using:
 `configure --with-gcc (4.7) --no-opt --enable-checking --cflags
 -I../../libs/libxpm-3.5.8/include -I../../libs/libxpm-3.5.8/src
 -I../../libs/libpng-1.4.10 -I../../libs/zlib-1.2.6
 -I../../libs/giflib-4.1.4-1/include -I../../libs/jpeg-6b-4/include
 -I../../libs/tiff-3.8.2-1/include
 -I../../libs/libxml2-2.7.8-w32-bin/include/libxml2
 -I../../libs/gnutls-3.0.16/include
 -I../../libs/libiconv-1.14-2-mingw32-dev/include'