use run_command for external grep
commitc8361301bfbf609b0c59bc522895a7ea55542600
authorJeff King <peff@peff.net>
Thu, 13 Mar 2008 12:39:03 +0000 (13 08:39 -0400)
committerJeff King <peff@peff.net>
Thu, 13 Mar 2008 13:40:11 +0000 (13 09:40 -0400)
tree1ea6ad0b46289c25038aa6637c98a165d20b0e42
parentee81bb18b82c936988daf139f65edb6866e46e9d
use run_command for external grep

The behavior should be identical, but there's no good reason
not to use our abstraction library.
builtin-grep.c