iptables: close open file descriptors

Just for correctness, close some file descriptors that were opened.
(E.g. ip6tables-save reading from procfs files.)

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/iptables-xml.c b/iptables-xml.c
index e5d19419..daf42084 100644
--- a/iptables-xml.c
+++ b/iptables-xml.c
@@ -870,6 +870,8 @@ main(int argc, char *argv[])
 		exit(1);
 	}
 
+	if (in != NULL)
+		fclose(in);
 	printf("</iptables-rules>\n");
 	free_argv();