vfr subtitle pushing

Index: libhb/render.c===================================================================--- libhb/render.c	(revision 1397)+++ libhb/render.c	(working copy)@@ -306,8 +306,9 @@                      pv->total_lost_time += temp_duration;                     pv->dropped_frames++;--                    hb_fifo_get( pv->subtitle_queue );+                    +                    hb_buffer_t * subtitles = hb_fifo_get( pv->subtitle_queue );+                    hb_buffer_close( &subtitles );                     buf_tmp_in = NULL;                 }                 else