From 150b2c516528a284ad6b526b1d42e11248d9eb3f Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@pond.sub.org>
Date: Sun, 10 Jun 2012 17:08:06 +0200
Subject: [PATCH] Fix bmap commands not to parse empty flags argument as
 "revert"

Broken in commit a00f9e20, v4.3.27.
---
 src/lib/subs/maps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/subs/maps.c b/src/lib/subs/maps.c
index 99d5bcca..860ab6d4 100644
--- a/src/lib/subs/maps.c
+++ b/src/lib/subs/maps.c
@@ -144,7 +144,7 @@ parse_map_flags(int bmap, char *str)
     case 0:   map_flags = 0;
     }
 
-    if (!str)
+    if (!str || !*str)
 	return map_flags;
 
     /* special case "revert" */