string: Include <stdarg.h>

This was required for a while and when not included will break the
build.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/src/daemon/string.h b/src/daemon/string.h
index e8d50f5036ce92475fa9881ca5d6dc454b06684e..20180a859f3e2fea5e425cf1ef6fb52aeb98c44f 100644 (file)
--- a/src/daemon/string.h
+++ b/src/daemon/string.h
@@ -23,6 +23,7 @@
 
 #include <ctype.h>
 #include <errno.h>
+#include <stdarg.h>
 #include <string.h>
 
 #include "util.h"