patch 9.1.0865: filetype: org files are not recognized

Problem:  filetype: org files are not recognized
Solution: detect '*.org' files as 'org' filetype,
          include filetype and syntax plugin
          (Luca Saccarola)

closes: #16054

Signed-off-by: Luca Saccarola <github.e41mv@aleeas.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 09fc184..8a89905 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -2724,4 +2724,14 @@
   filetype off
 endfunc
 
+func Test_org_file()
+  filetype on
+
+  call writefile(['* org Headline', '*some bold text*', '/some italic text/'], 'Xfile.org', 'D')
+  split Xfile.org
+  call assert_equal('org', &filetype)
+
+  filetype off
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index cbc4a8e..79b3099 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    865,
+/**/
     864,
 /**/
     863,