gst-inspect: fix output for -a
gst-inspect: fix output for -a

Use n_print to ensure all lines are prefixed with the element name.

mparis/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,jpxiong/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,mparis/gstreamer,centricular/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,krichter722/gstreamer,mparis/gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,centricular/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,mparis/gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,mparis/gstreamer,centricular/gstreamer,shelsonjava/gstreamer