[gnome-builder] git: check result of system() in test-git

[Christian Hergert <chergert src gnome org>]

commit 4c0177ed77c72e5a169f8b558f5f199e791c9ea1
Author: Christian Hergert <chergert redhat com>
Date:   Wed Apr 24 15:55:31 2019 -0700

    git: check result of system() in test-git

 src/plugins/git/daemon/test-git.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/plugins/git/daemon/test-git.c b/src/plugins/git/daemon/test-git.c
index 4cd35ab13..60a79f41b 100644
--- a/src/plugins/git/daemon/test-git.c
+++ b/src/plugins/git/daemon/test-git.c
@@ -44,7 +44,8 @@ cleanup_dir (void)
   g_autofree gchar *command = NULL;
   command = g_strdup_printf ("rm -rf '%s' '%s'", tmpdir, tmpdir_push);
   g_message ("%s", command);
-  system (command);
+  if (system (command) != 0)
+    g_warning ("Failed to execute command: %s", command);
 }
 
 static void