Silence GCC when incorrectly complaining that the "line" variable could be used

without having been initialized.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@7711 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/snow.c

@@ -3547,7 +3547,7 @@ static void correlate_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand
 
 //    START_TIMER
 
-    DWTELEM * line;
+    DWTELEM * line=0; // silence silly "could be used without having been initialized" warning
     DWTELEM * prev;
 
     if (start_y != 0)