From 6856a71d0b056d5a2169ab121c5396a78f068aae Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Tue, 23 Apr 2019 15:24:49 -0400
Subject: _ob_parse_control_error(): Make arg vars local

---
diff --git a/lib/control.sh b/lib/control.sh
index d8d9bd2..c7a8010 100644
--- a/lib/control.sh
+++ b/lib/control.sh
@@ -30,9 +30,9 @@ _OB_SUBSTVAR_TRIM_SED='
 
 _ob_parse_control_error()
 {
-	file="${1}"
-	line_nr="${2}"
-	msg_id="${3}"
+	local file="${1}"
+	local line_nr="${2}"
+	local msg_id="${3}"
 	shift 3 || _ob_abort
 	local file_info=
 
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