Replace tabs with whitespace.

configure.ac

@@ -3023,7 +3023,6 @@ dnl Those options have to be here because the .pc can be bogus for ffmpeg previo
      VLC_ADD_BUILTINS([stream_out_switcher])
    fi
 
-
    if test -f "${real_ffmpeg_tree}/libswscale/libswscale.a"; then
      AC_DEFINE(HAVE_LIBSWSCALE_TREE, 1, [Define if you have ffmpeg's libswscale.])
      VLC_ADD_LIBS([ffmpeg],[-L${real_ffmpeg_tree}/libswscale ${real_ffmpeg_tree}/libswscale/libswscale.a])
@@ -3119,7 +3118,6 @@ dnl Trying with pkg-config
         fi],
          [ AC_MSG_ERROR([Could not find ffmpeg on your system: you may get it from http://ffmpeg.sf.net/ (svn version is recommended). Alternatively you can use --disable-ffmpeg to disable the ffmpeg plugins.]) ], [$LDAVUTIL])
 
-      
       AC_CHECK_LIB(postproc, pp_postprocess, [
         VLC_ADD_LIBS([ffmpeg],[-lpostproc])],
       AC_MSG_ERROR([Could not find libpostproc inside FFmpeg. You should configure FFmpeg with --enable-gpl --enable-pp.]),