lib.sh: simplify chkvars()

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/include/lib.sh b/include/lib.sh
index 7c4d71ea..822f1abc 100644
--- a/include/lib.sh
+++ b/include/lib.sh
@@ -71,11 +71,9 @@ setcfg()
 
 chkvars()
 {
-	while true; do
-		[ $# -lt 1 ] && break
+	while [ $# -gt 0 ]; do
 		eval "[ -n \"\${$1+x}\" ] || err \"$1 unset\""
-		eval "[ -n \"\$$1\" ] || err \"$1 unset\""
-		shift 1
+		eval "[ -n \"\$$1\" ] || err \"$1 unset\"; shift 1; :"
 	done; :
 }