From d013138f8a1af30d29cd2413f6740346158abc35 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Mon, 18 Mar 2019 14:20:48 -0400
Subject: _ob_validate_var_name(): Abort on missing argument

---
(limited to 'lib')

diff --git a/lib/common.sh b/lib/common.sh
index 0f13d1b..82a4519 100644
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -29,7 +29,10 @@ _ob_abort()
 
 _ob_validate_var_name()
 {
-	case "${1}" in
+	local name="${1}"
+	shift 1 || _ob_abort
+
+	case "${name}" in
 		[!a-zA-Z_]*|*[!a-zA-Z0-9_]*)
 			return 1
 			;;
--
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