configure: fix help for macosx-bundle from autodetected to disabled

The help and configure result wrongly showed this feature was autodetected,
while it is infact disabled by default.

configure

@@ -316,7 +316,7 @@ Optional features:
   --disable-bluray       disable Blu-ray support [autodetect]
   --disable-dvdread      disable libdvdread [autodetect]
   --disable-enca         disable ENCA charset oracle library [autodetect]
-  --enable-macosx-bundle enable Mac OS X bundle file locations [autodetect]
+  --enable-macosx-bundle enable Mac OS X bundle file locations [disabled]
   --disable-pthreads     disable Posix threads support [autodetect]
   --disable-libass       disable subtitle rendering with libass [autodetect]
   --disable-libass-osd   disable OSD rendering with libass [autodetect]
@@ -474,7 +474,7 @@ _cdda=auto
 _coreaudio=auto
 _corevideo=auto
 _cocoa=auto
-_macosx_bundle=auto
+_macosx_bundle=no
 _enca=auto
 _pthreads=auto
 _ass=auto
@@ -709,7 +709,6 @@ for ac_option do
   --enable-cocoa) _cocoa=yes ;;
   --disable-cocoa) _cocoa=no ;;
   --enable-macosx-bundle) _macosx_bundle=yes ;;
-  --disable-macosx-bundle) _macosx_bundle=no ;;
 
   --enable-manpage) _build_man=yes ;;
   --disable-manpage) _build_man=no ;;
@@ -1550,11 +1549,11 @@ echores "$_sys_sysinfo"
 if darwin; then
 
 echocheck "Mac OS X Bundle file locations"
-def_macosx_bundle='#undef CONFIG_MACOSX_BUNDLE'
-test "$_macosx_bundle" = auto
 if test "$_macosx_bundle" = yes ; then
   extra_ldflags="$extra_ldflags -headerpad_max_install_names"
   def_macosx_bundle='#define CONFIG_MACOSX_BUNDLE 1'
+else
+  def_macosx_bundle='#undef CONFIG_MACOSX_BUNDLE'
 fi
 echores "$_macosx_bundle"