Use if(0){} instead of #if 0 to prevent debug code to rot.

Originally committed as revision 19756 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavdevice/vfwcap.c

@@ -294,7 +294,7 @@ static int vfw_read_header(AVFormatContext *s, AVFormatParameters *ap)
     bi->bmiHeader.biWidth  = width ;
     bi->bmiHeader.biHeight = height;
 
-#if 0
+    if (0) {
     /* For testing yet unsupported compressions
      * Copy these values from user-supplied verbose information */
     bi->bmiHeader.biWidth       = 320;
@@ -304,7 +304,7 @@ static int vfw_read_header(AVFormatContext *s, AVFormatParameters *ap)
     bi->bmiHeader.biCompression = MKTAG('I','4','2','0');
     bi->bmiHeader.biSizeImage   = 115200;
     dump_bih(s, &bi->bmiHeader);
-#endif
+    }
 
     ret = SendMessage(ctx->hwnd, WM_CAP_SET_VIDEOFORMAT, bisize, (LPARAM) bi);
     if(!ret) {