patch 9.1.0779: filetype: neomuttlog files are not recognized

Problem:  filetype: neomuttlog files are not recognized
Solution: detect '*.neomuttdebug' file as neomuttlog filetype,
          include neomuttlog syntax script (Richard Russon)

closes: #15858

Co-authored-by: AvidSeeker <avidseeker7@protonmail.com>
Signed-off-by: Richard Russon <rich@flatcap.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 4fe5201..2b95b26 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -526,7 +526,7 @@
     nanorc: ['/etc/nanorc', 'file.nanorc', 'any/etc/nanorc'],
     natural: ['file.NSA', 'file.NSC', 'file.NSG', 'file.NSL', 'file.NSM', 'file.NSN', 'file.NSP', 'file.NSS'],
     ncf: ['file.ncf'],
-    neomuttrc: ['Neomuttrc', '.neomuttrc', '.neomuttrc-file', '/.neomutt/neomuttrc', '/.neomutt/neomuttrc-file', 'Neomuttrc', 'Neomuttrc-file', 'any/.neomutt/neomuttrc', 'any/.neomutt/neomuttrc-file', 'neomuttrc', 'neomuttrc-file'],
+    neomuttrc: ['Neomuttrc', '.neomuttrc', '.neomuttrc-file', '/.neomutt/neomuttrc', '/.neomutt/neomuttrc-file', 'Neomuttrc', 'Neomuttrc-file', 'any/.neomutt/neomuttrc', 'any/.neomutt/neomuttrc-file', 'neomuttrc', 'neomuttrc-file', 'neomuttlog'],
     netrc: ['.netrc'],
     nginx: ['file.nginx', 'nginxfile.conf', 'filenginx.conf', 'any/etc/nginx/file', 'any/usr/local/nginx/conf/file', 'any/nginx/file.conf'],
     nim: ['file.nim', 'file.nims', 'file.nimble'],
diff --git a/src/version.c b/src/version.c
index 221b32e..becaa3e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    779,
+/**/
     778,
 /**/
     777,