only print last line warning if verbose is on

git-svn-id: file:///var/local/repositories/mplayer/trunk/postproc@3884 b3059339-0415-0410-9bf9-f77b7e298cf2

swscale_template.c

@@ -2180,7 +2180,7 @@ if(dststride%widthAlign !=0 )
 				widthAlign);
 }
 
-if(over>0)
+if(over>0 && verbose)
 {
 	if(firstTime)
 		fprintf(stderr, "SwScaler: Warning: output width is not a multiple of 8 (16 for YV12)\n"