[gnome-builder] c-pack: specify string length for void

[Christian Hergert <chergert src gnome org>]

commit e5d21dccee429f93a927fe849ba80f28848407a5
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jun 13 04:21:19 2018 -0700

    c-pack: specify string length for void

 src/plugins/c-pack/hdr-format.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/src/plugins/c-pack/hdr-format.c b/src/plugins/c-pack/hdr-format.c
index 69778d273..920c01d30 100644
--- a/src/plugins/c-pack/hdr-format.c
+++ b/src/plugins/c-pack/hdr-format.c
@@ -372,7 +372,10 @@ hdr_format_string (const gchar *data,
           g_string_append (out, rtype);
         }
       else
-        g_string_append (out, "void");
+        {
+          g_string_append (out, "void");
+          rlen = 4;
+        }
 
       for (guint j = rlen; j < long_ret; j++)
         g_string_append_c (out, ' ');