setup: handle invalid machine argument more gracefully

If 'setup' is sourced with an invalid machine name, the error message is
now sent to stderr and the failure is propagated back up the stack with
a non-zero return value.

Change-Id: I50ad40b58c1479ce9ee80ea52536075eddd09b4c
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/setup b/setup
index 3b54c0c827..cc3414ce17 100755
--- a/setup
+++ b/setup
@@ -76,7 +76,7 @@ machine() {
 		fi
 	done
 
-	[ -n "$target" ] && echo "No such machine!"
+	[ -n "$target" ] && echo "No such machine!" >&2 && return 1
 }
 
 if [ -z "$1" ]; then