Fix typo in git-crup.

TBR=szager@chromium.org


Review URL: https://chromiumcodereview.appspot.com/10825122

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@149322 0039d316-1c4b-4281-b951-d872f2087c98

git-crup

@@ -15,7 +15,7 @@ hooks=yes
 
 usage() {
   cat <<EOF 1>&2
-Usage: git-cr-sync [-n|--dry-run] [--fetch] [-j|--jobs [jobs]]
+Usage: git-crup [-n|--dry-run] [--fetch] [-j|--jobs [jobs]]
     [--no-hooks] [<args to git-pull or git-fetch>]
 EOF
 }