patch 9.0.0562: HSL playlist files are not recognized

Problem:    HSL playlist files are not recognized.
Solution:   Add a pattern to recognize HSL palylist files. (BenoƮt Ryder,
            closes #11204)
diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 78d723c..17697a1 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -844,6 +844,9 @@
 " Hjson
 au BufNewFile,BufRead *.hjson			setf hjson
 
+" HLS Playlist
+au BufNewFile,BufRead *.m3u8			setf hlsplaylist
+
 " Hollywood
 au BufRead,BufNewFile *.hws			setf hollywood
 
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 03384b6..e66fd0c 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -255,6 +255,7 @@
     \ 'hex': ['file.hex', 'file.h32'],
     \ 'hgcommit': ['hg-editor-file.txt'],
     \ 'hjson': ['file.hjson'],
+    \ 'hlsplaylist': ['file.m3u8'],
     \ 'hog': ['file.hog', 'snort.conf', 'vision.conf'],
     \ 'hollywood': ['file.hws'],
     \ 'hoon': ['file.hoon'],
diff --git a/src/version.c b/src/version.c
index 20ed2d7..665adc1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    562,
+/**/
     561,
 /**/
     560,