[gnome-builder] run-manager: check for non-NULL gvariant parameter

[Christian Hergert <chergert src gnome org>]

commit 69301fa6deb92df34c95ca52f7261c157a3ad04e
Author: Christian Hergert <chergert redhat com>
Date:   Sat Sep 10 09:33:41 2016 -0700

    run-manager: check for non-NULL gvariant parameter

 libide/runner/ide-run-manager.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/libide/runner/ide-run-manager.c b/libide/runner/ide-run-manager.c
index 5af1579..adbf4a3 100644
--- a/libide/runner/ide-run-manager.c
+++ b/libide/runner/ide-run-manager.c
@@ -865,7 +865,10 @@ ide_run_manager_activate_action (GActionGroup *group,
   if (FALSE) {}
   else if (g_strcmp0 (action_name, "run-with-handler") == 0)
     {
-      const gchar *handler = g_variant_get_string (parameter, NULL);
+      const gchar *handler = NULL;
+
+      if (parameter != NULL)
+        handler = g_variant_get_string (parameter, NULL);
 
       /* "" translates to current handler */
       if (handler && *handler)