[Bug 698091] fix printf format

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=698091
  GStreamer | gst-streaming-server | git

Tim-Philipp Müller <t.i.m> changed:

           What    |Removed                     |Added
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   Target Milestone|HEAD                        |1.0.0

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