From a68d7325c44b881582cbd5ffe9dcf6623b0fd4f3 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Wed, 13 Mar 2019 04:05:49 -0400
Subject: ob_substvars(): s/while true/while :/

---
diff --git a/lib/control.sh b/lib/control.sh
index f8bad2c..17c1ca8 100644
--- a/lib/control.sh
+++ b/lib/control.sh
@@ -233,7 +233,7 @@ ob_substvars()
 
 	depth=0
 
-	while true; do
+	while :; do
 		lhs="${string%%\$\{*}"
 		if [ ${#lhs} -eq ${#string} ]; then
 			# No "${" was found.
--
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