[gold][patch] Trivial comment fix

[Cary Coutant]

I'm applying this trivial patch to fix a comment.

-cary

* fileread.cc (find_or_make_view): Fix comment.

Index: fileread.cc
===================================================================
RCS file: /cvs/src/src/gold/fileread.cc,v
retrieving revision 1.62
diff -u -p -r1.62 fileread.cc
--- fileread.cc	10 Mar 2010 17:37:11 -0000	1.62
+++ fileread.cc	24 Mar 2010 01:26:03 -0000
@@ -469,7 +469,7 @@ File_read::find_or_make_view(off_t offse
   // If --map-whole-files is set, make sure we have a
   // whole file view.  Options may not yet be ready, e.g.,
   // when reading a version script.  We then default to
-  // --no-keep-files-mapped.
+  // --no-map-whole-files.
   if (this->whole_file_view_ == NULL
       && parameters->options_valid()
       && parameters->options().map_whole_files())