Move zlib/bzlib options to the external library section of the help output and

mention the enable variant of the option since they are disabled by default.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@15860 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

configure

@@ -89,6 +89,7 @@ show_help(){
   echo "External library support:"
   echo "  --enable-mlib            enable Sun medialib [no]"
   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
+  echo "  --enable-bzlib           enable bzlib [no]"
   echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec"
   echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec"
   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
@@ -109,6 +110,7 @@ show_help(){
   echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
   echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
   echo "                           native MPEG-4/Xvid encoder exists [no]"
+  echo "  --enable-zlib            enable zlib [no]"
   echo ""
   echo "Advanced options (experts only):"
   echo "  --source-path=PATH       path to source code [$source_path]"
@@ -136,8 +138,6 @@ show_help(){
   echo "  --disable-altivec        disable AltiVec optimizations"
   echo "  --disable-network        disable network support [no]"
   echo "  --disable-ipv6           disable IPv6 support [no]"
-  echo "  --disable-zlib           disable zlib [no]"
-  echo "  --disable-bzlib          disable bzlib [no]"
   echo "  --disable-vhook          disable video hooking support"
   echo "  --disable-mpegaudio-hp   faster (but less accurate)"
   echo "                           MPEG audio decoding [no]"