patch 9.1.0246: filetype: fontconfig files are not recognized

Problem:  filetype: fontconfig files are not recognized
Solution: detect 'fonts.conf' as xml
          (Wu, Zhenyu)

closes: #14367

Signed-off-by: Wu, Zhenyu <wuzhenyu@ustc.edu>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index fe450b8..bb5205f 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -507,6 +507,9 @@
 au BufNewFile,BufRead *s6*/\(up\|down\|run\|finish\)    setf execline
 au BufNewFile,BufRead s6-*                              setf execline
 
+" Fontconfig config files
+au BufNewFile,BufRead fonts.conf			setf xml
+
 " Lynx config files
 au BufNewFile,BufRead lynx.cfg			setf lynx
 
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index f3cc939..631792c 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -811,7 +811,7 @@
     xinetd: ['/etc/xinetd.conf', '/etc/xinetd.d/file', 'any/etc/xinetd.conf', 'any/etc/xinetd.d/file'],
     xkb: ['/usr/share/X11/xkb/compat/pc', '/usr/share/X11/xkb/geometry/pc', '/usr/share/X11/xkb/keycodes/evdev', '/usr/share/X11/xkb/symbols/pc', '/usr/share/X11/xkb/types/pc'],
     xmath: ['file.msc', 'file.msf'],
-    xml: ['/etc/blkid.tab', '/etc/blkid.tab.old', 'file.xmi', 'file.csproj', 'file.csproj.user', 'file.fsproj', 'file.fsproj.user', 'file.vbproj', 'file.vbproj.user', 'file.ui', 'file.tpm', '/etc/xdg/menus/file.menu', 'fglrxrc', 'file.xlf', 'file.xliff', 'file.xul', 'file.wsdl', 'file.wpl', 'any/etc/blkid.tab', 'any/etc/blkid.tab.old', 'any/etc/xdg/menus/file.menu', 'file.atom', 'file.rss', 'file.cdxml', 'file.psc1', 'file.mpd'],
+    xml: ['/etc/blkid.tab', '/etc/blkid.tab.old', 'file.xmi', 'file.csproj', 'file.csproj.user', 'file.fsproj', 'file.fsproj.user', 'file.vbproj', 'file.vbproj.user', 'file.ui', 'file.tpm', '/etc/xdg/menus/file.menu', 'fglrxrc', 'file.xlf', 'file.xliff', 'file.xul', 'file.wsdl', 'file.wpl', 'any/etc/blkid.tab', 'any/etc/blkid.tab.old', 'any/etc/xdg/menus/file.menu', 'file.atom', 'file.rss', 'file.cdxml', 'file.psc1', 'file.mpd', 'fonts.conf'],
     xmodmap: ['anyXmodmap', 'Xmodmap', 'some-Xmodmap', 'some-xmodmap', 'some-xmodmap-file', 'xmodmap', 'xmodmap-file'],
     xpm: ['file.xpm'],
     xpm2: ['file.xpm2'],
diff --git a/src/version.c b/src/version.c
index 4908129..3b33893 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    246,
+/**/
     245,
 /**/
     244,