From ef6455d8d03b0b999968ab6f8444baa14f68bb02 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Sat, 16 Mar 2019 23:05:57 -0400
Subject: ob_parse_control(): Fix variable name in expansion

Bug found with "set -u" in test suite.
---
diff --git a/lib/control.sh b/lib/control.sh
index 58827ea..3c2507e 100644
--- a/lib/control.sh
+++ b/lib/control.sh
@@ -125,7 +125,7 @@ ob_parse_control()
 				case "${req_fields}" in *" ${name} "*)
 					# Required field: remove from list.
 					req_fields="${req_fields% ${name} *}$(:\
-						) ${req#* ${field} }"
+						) ${req_fields#* ${field} }"
 					continue
 				esac
 				if ${check_fields}; then
--
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