--- a/config.c	
+++ a/config.c	
@@ -472,7 +472,7 @@ static const struct config_names_s {
 	}, {
 		CONFIG_VENDOR, 1, 1,
 		"--vendor",
-		"Vendor ",
+		"Vendor",
 		"<cisco/juniper/netscreen>",
 		"vendor of your IPSec gateway",
 		config_def_vendor