completion: add comment for test_completion()

diff --git a/t/t9400-git-cvsserver-server.sh b/t/t9400-git-cvsserver-server.sh
index d3e88f8dd6d0bf79cef3856a187006777881f1c7..806623e8858eef6ebe224ea14a38732f63fd6e49 100755 (executable)
--- a/t/t9400-git-cvsserver-server.sh
+++ b/t/t9400-git-cvsserver-server.sh
@@ -500,8 +500,8 @@ test_expect_success 'cvs status (no subdirs in header)' '
 cd "$WORKDIR"
 test_expect_success 'cvs co -c (shows module database)' '
     GIT_CONFIG="$git_config" cvs co -c > out &&
-    grep "^master[      ]\+master$" < out &&
-    ! grep -v "^master[         ]\+master$" < out
+    grep "^master[      ][     ]*master$" <out &&
+    ! grep -v "^master[         ][     ]*master$" <out
 '
 
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