add "rc: " prefix to "cannot shift" error

1 files changed, 1 insertions, 1 deletions

diff --git a/builtins.c b/builtins.c
index 75ac9cf..a0f0ebe 100644
--- a/builtins.c
+++ b/builtins.c
@@ -236,7 +236,7 @@ static void b_shift(char **av) {
 		--shift;
 	}
 	if (s == NULL && shift != 0) {
-		fprint(2, "cannot shift\n");
+		fprint(2, "rc: cannot shift\n");
 		set(FALSE);
 	} else {
 		varassign("*", append(dollarzero, s), FALSE);