[Bug 712300] New: gst-launch exits with 0 error code even after an error occurred

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=712300
  GStreamer | gstreamer (core) | git

           Summary: gst-launch exits with 0 error code even after an error
                    occurred
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: phil at base-art.net
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


In case of fatal errors like a pipeline refusing to pre-roll, it would be nice
to return an exit code.

This would be quite helpful especially when git bisecting :) I'll attach a
simple patch.

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