API doc issues in new API
../subprojects/gstreamer/gst/gstutils.c:3675: Warning: Gst: gst_util_simplify_fraction: unknown parameter 'b' in documentation comment, should be one of 'denominator', 'numerator', 'threshold'
../subprojects/gstreamer/gst/gstutils.c:3674: Warning: Gst: gst_util_simplify_fraction: unknown parameter 'a' in documentation comment, should be one of 'denominator', 'numerator', 'threshold'
../subprojects/gstreamer/gst/gstutils.c:3677: Warning: Gst: gst_util_simplify_fraction: unknown parameter 'threashold' in documentation comment, should be one of 'denominator', 'numerator', 'threshold'
../subprojects/gstreamer/gst/gstutils.c:3688: Warning: Gst: gst_util_simplify_fraction: invalid return annotation
cc @mgrzeschik