patch 8.2.1055: no filetype set for pacman config files

Problem:    No filetype set for pacman config files.
Solution:   Recognize pacman.conf and *.hook. (Guido Cella, closes #6335)
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 6d245ae..38339ae 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -139,7 +139,7 @@
     \ 'dnsmasq': ['/etc/dnsmasq.conf'],
     \ 'dockerfile': ['Containerfile', 'Dockerfile', 'file.Dockerfile'],
     \ 'dosbatch': ['file.bat', 'file.sys'],
-    \ 'dosini': ['.editorconfig', '/etc/yum.conf', 'file.ini'],
+    \ 'dosini': ['.editorconfig', '/etc/pacman.conf', '/etc/yum.conf', 'file.ini'],
     \ 'dot': ['file.dot', 'file.gv'],
     \ 'dracula': ['file.drac', 'file.drc', 'filelvs', 'filelpe'],
     \ 'dsl': ['file.dsl'],
@@ -665,4 +665,22 @@
   close
 endfunc
 
+func Test_hook_file()
+  filetype on
+
+  call writefile(['[Trigger]', 'this is pacman config'], 'Xfile.hook')
+  split Xfile.hook
+  call assert_equal('dosini', &filetype)
+  bwipe!
+
+  call writefile(['not pacman'], 'Xfile.hook')
+  split Xfile.hook
+  call assert_notequal('dosini', &filetype)
+  bwipe!
+
+  call delete('Xfile.hook')
+  filetype off
+endfunc
+
+
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index 536d27d..11ec763 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1055,
+/**/
     1054,
 /**/
     1053,