avfilter/framesync: fix shortest with eof_action=pass

Shifted check of shortest to after repeatlast,
to ensure shortest=1 is always honoured.

libavfilter/framesync.c

@@ -127,16 +127,16 @@ int ff_framesync_configure(FFFrameSync *fs)
         fs->opt_shortest = 1;
         fs->opt_eof_action = EOF_ACTION_ENDALL;
     }
-    if (fs->opt_shortest) {
-        for (i = 0; i < fs->nb_in; i++)
-            fs->in[i].after = EXT_STOP;
-    }
     if (!fs->opt_repeatlast) {
         for (i = 1; i < fs->nb_in; i++) {
             fs->in[i].after = EXT_NULL;
             fs->in[i].sync  = 0;
         }
     }
+    if (fs->opt_shortest) {
+        for (i = 0; i < fs->nb_in; i++)
+            fs->in[i].after = EXT_STOP;
+    }
 
     if (!fs->time_base.num) {
         for (i = 0; i < fs->nb_in; i++) {