patch 9.1.1196: filetype: config files for container tools are not recognized

Problem:  filetype: config files for container tools are not recognized
Solution: detect the ones that aren't detected yet as toml filetype
          (David Mandelberg)

The .containerignore format doesn't look exactly the same as gitignore,
but very close. And .dockerignore is already using gitignore.

References:
https://github.com/containers/common/blob/main/docs/containerignore.5.md
https://github.com/containers/common/blob/main/docs/containers.conf.5.md
https://github.com/containers/storage/blob/main/docs/containers-storage.conf.5.md
https://github.com/containers/image/blob/main/docs/containers-registries.conf.5.md
https://github.com/containers/image/blob/main/docs/containers-registries.conf.d.5.md

I wasn't sure exactly how to interpret what containers.conf(5) was
saying about modules, so I looked at
https://github.com/containers/common/tree/main/pkg/config/testdata/modules
to get examples, and based the detection off those.

closes: #16852

Signed-off-by: David Mandelberg <david@mandelberg.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/filetype.vim

@@ -1,7 +1,7 @@
 " Vim support file to detect file types
 "
 " Maintainer:	The Vim Project <https://github.com/vim/vim>
-" Last Change:	2025 Mar 10
+" Last Change:	2025 Mar 12
 " Former Maintainer:	Bram Moolenaar <Bram@vim.org>
 
 " Listen very carefully, I will say this only once
@@ -395,6 +395,12 @@ au BufNewFile,BufRead *.cdl			setf cdl
 " Conary Recipe
 au BufNewFile,BufRead *.recipe			setf conaryrecipe
 
+" Containers config files
+au BufNewFile,BufRead */containers/containers.conf{,.d/*.conf}		setf toml
+au BufNewFile,BufRead */containers/containers.conf.modules/*.conf	setf toml
+au BufNewFile,BufRead */containers/registries.conf{,.d/*.conf}		setf toml
+au BufNewFile,BufRead */containers/storage.conf				setf toml
+
 " Corn config file
 au BufNewFile,BufRead *.corn			setf corn
 
@@ -963,7 +969,7 @@ au BufNewFile,BufRead */etc/gitattributes			setf gitattributes
 au BufNewFile,BufRead .gitignore,*.git/info/exclude		setf gitignore
 au BufNewFile,BufRead */.config/git/ignore,*.prettierignore	setf gitignore
 au BufNewFile,BufRead */.config/fd/ignore,.fdignore,.ignore	setf gitignore
-au BufNewFile,BufRead .rgignore,.dockerignore			setf gitignore
+au BufNewFile,BufRead .rgignore,.dockerignore,.containerignore	setf gitignore
 au BufNewFile,BufRead .npmignore,.vscodeignore			setf gitignore
 au BufNewFile,BufRead git-rebase-todo				setf gitrebase
 au BufRead,BufNewFile .gitsendemail.msg.??????			setf gitsendemail

src/testdir/test_filetype.vim

@@ -306,7 +306,7 @@ def s:GetFilenameChecks(): dict<list<string>>
     gitattributes: ['file.git/info/attributes', '.gitattributes', '/.config/git/attributes', '/etc/gitattributes', '/usr/local/etc/gitattributes', 'some.git/info/attributes'] + WhenConfigHome('$XDG_CONFIG_HOME/git/attributes'),
     gitcommit: ['COMMIT_EDITMSG', 'MERGE_MSG', 'TAG_EDITMSG', 'NOTES_EDITMSG', 'EDIT_DESCRIPTION'],
     gitconfig: ['file.git/config', 'file.git/config.worktree', 'file.git/worktrees/x/config.worktree', '.gitconfig', '.gitmodules', 'file.git/modules//config', '/.config/git/config', '/etc/gitconfig', '/usr/local/etc/gitconfig', '/etc/gitconfig.d/file', 'any/etc/gitconfig.d/file', '/.gitconfig.d/file', 'any/.config/git/config', 'any/.gitconfig.d/file', 'some.git/config', 'some.git/modules/any/config'] + WhenConfigHome('$XDG_CONFIG_HOME/git/config'),
-    gitignore: ['file.git/info/exclude', '.gitignore', '/.config/git/ignore', 'some.git/info/exclude'] + WhenConfigHome('$XDG_CONFIG_HOME/git/ignore') + ['.prettierignore', '.fdignore', '/.config/fd/ignore', '.ignore', '.rgignore', '.dockerignore', '.npmignore', '.vscodeignore'],
+    gitignore: ['file.git/info/exclude', '.gitignore', '/.config/git/ignore', 'some.git/info/exclude'] + WhenConfigHome('$XDG_CONFIG_HOME/git/ignore') + ['.prettierignore', '.fdignore', '/.config/fd/ignore', '.ignore', '.rgignore', '.dockerignore', '.containerignore', '.npmignore', '.vscodeignore'],
     gitolite: ['gitolite.conf', '/gitolite-admin/conf/file', 'any/gitolite-admin/conf/file'],
     gitrebase: ['git-rebase-todo'],
     gitsendemail: ['.gitsendemail.msg.xxxxxx'],
@@ -819,7 +819,11 @@ def s:GetFilenameChecks(): dict<list<string>>
     tla: ['file.tla'],
     tli: ['file.tli'],
     tmux: ['tmuxfile.conf', '.tmuxfile.conf', '.tmux-file.conf', '.tmux.conf', 'tmux-file.conf', 'tmux.conf', 'tmux.conf.local'],
-    toml: ['file.toml', 'Gopkg.lock', 'Pipfile', '/home/user/.cargo/config', '.black'],
+    toml: ['file.toml', 'Gopkg.lock', 'Pipfile', '/home/user/.cargo/config', '.black',
+           'any/containers/containers.conf', 'any/containers/containers.conf.d/file.conf',
+           'any/containers/containers.conf.modules/file.conf', 'any/containers/containers.conf.modules/any/file.conf',
+           'any/containers/registries.conf', 'any/containers/registries.conf.d/file.conf',
+           'any/containers/storage.conf'],
     tpp: ['file.tpp'],
     trace32: ['file.cmm', 'file.cmmt', 'file.t32'],
     treetop: ['file.treetop'],

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1196,
 /**/
     1195,
 /**/