Fix gst_init() so that it doesn't fail when passed two NULLs as parameters.
Fix gst_init() so that it doesn't fail when passed two NULLs as parameters.

Original commit message from CVS:
Fix gst_init() so that it doesn't fail when passed two NULLs as parameters.
Was dereferencing the argv pointer to get progname: now defaults to
"gstprog".

magcius/gstreamer,krieger-od/gstreamer,collects/gstreamer,ahmedammar/platform_external_gst_gstreamer,surround-io/gstreamer,mrchapp/gstreamer,lovebug356/gstreamer,cfoch/gstreamer,StreamUtils/gstreamer,cablelabs/gstreamer,ahmedammar/platform_external_gst_gstreamer,centricular/gstreamer,cablelabs/gstreamer,krieger-od/gstreamer,krieger-od/gstreamer,ensonic/gstreamer,cfoch/gstreamer,surround-io/gstreamer,StreamUtils/gstreamer,jpakkane/gstreamer,justinjoy/gstreamer,cablelabs/gstreamer,centricular/gstreamer,collects/gstreamer,ylatuya/gstreamer,StreamUtils/gstreamer,ahmedammar/platform_external_gst_gstreamer,Lachann/gstreamer,ensonic/gstreamer,jpakkane/gstreamer,ylatuya/gstreamer,justinjoy/gstreamer,ensonic/gstreamer,surround-io/gstreamer,shelsonjava/gstreamer,justinjoy/gstreamer,Lachann/gstreamer,mrchapp/gstreamer,lubosz/gstreamer,magcius/gstreamer,surround-io/gstreamer,krichter722/gstreamer,Distrotech/gstreamer,mrchapp/gstreamer,mrchapp/gstreamer,jpakkane/gstreamer,cfoch/gstreamer,Distrotech/gstreamer,cablelabs/gstreamer,StreamUtils/gstreamer,ylatuya/gstreamer,mparis/gstreamer,shelsonjava/gstreamer,lubosz/gstreamer,Lachann/gstreamer,mparis/gstreamer,cfoch/gstreamer,mparis/gstreamer,mparis/gstreamer,lubosz/gstreamer,mparis/gstreamer,Distrotech/gstreamer,drothlis/gstreamer,drothlis/gstreamer,Distrotech/gstreamer,centricular/gstreamer,jpxiong/gstreamer,Lachann/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,Distrotech/gstreamer,ahmedammar/platform_external_gst_gstreamer,jpakkane/gstreamer,magcius/gstreamer,collects/gstreamer,krieger-od/gstreamer,lovebug356/gstreamer,ylatuya/gstreamer,surround-io/gstreamer,justinjoy/gstreamer,mrchapp/gstreamer,krichter722/gstreamer,centricular/gstreamer,drothlis/gstreamer,krichter722/gstreamer,collects/gstreamer,magcius/gstreamer,jpxiong/gstreamer,cfoch/gstreamer,lovebug356/gstreamer,shelsonjava/gstreamer,magcius/gstreamer,lubosz/gstreamer,justinjoy/gstreamer,krieger-od/gstreamer,ylatuya/gstreamer,ahmedammar/platform_external_gst_gstreamer,Lachann/gstreamer,centricular/gstreamer,ensonic/gstreamer,cablelabs/gstreamer,drothlis/gstreamer,ensonic/gstreamer,StreamUtils/gstreamer,jpxiong/gstreamer,jpxiong/gstreamer,drothlis/gstreamer,lubosz/gstreamer,lovebug356/gstreamer,krichter722/gstreamer,lovebug356/gstreamer,jpakkane/gstreamer,collects/gstreamer,shelsonjava/gstreamer