Fix missing space in ruleset listing
diff --git a/extensions/libipt_string.c b/extensions/libipt_string.c
index 5492cfc..266b3e5 100644
--- a/extensions/libipt_string.c
+++ b/extensions/libipt_string.c
@@ -307,7 +307,7 @@
 	if (info->from_offset != 0)
 		printf("FROM %u ", info->from_offset);
 	if (info->to_offset != 0)
-		printf("TO %u", info->to_offset);
+		printf("TO %u ", info->to_offset);
 }