Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

For files not named on the command line, only the basename is compared
to the exclude pattern.
Change this so that "grep --exclude='*/.svn/*' -[Rr] foo *" DWIM.

Obtained from: dave+news001@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx (Dave Gibson)
Obtained from: comp.unix.questions [Thu, 15 Mar 2007 18:54:38 +0000]
Obtained from: http://unix.derkeiler.com/Newsgroups/comp.unix.questions/2007-03/msg00046.html

This commit was generated by cvs2svn to compensate for changes in r131554,
which included commits to RCS files with non-trunk default branches.

Import GNU grep 2.5.1 (trimmed)

Trimmed grep 2.4.2

Virgin import of a trimmed down GNU Grep 2.4d.

Virgin import of a trimmed down GNU Grep 2.4a.

Virgin import of a trimmed down GNU Grep 2.3.

It is being re-imported here, to keep our long source change history with
this source continuous.
src/contrib/grep will be deleted some time in the very near future.