vim: Import v9.1.1766

* runtime(kitty): Fix typo in syntax file for kitty
* 9.1.1766: Vim9: some functions do not handle null_string correctly
* runtime(doc): Tweak doc style in syntax.txt
* runtime(doc): mention generic log highlighter
* runtime(doc): fix doc style from commit 5c9b71d63c1

Author: github-actions[bot]

gitlog.txt

@@ -1 +1 @@
-* [runtime(kitty): fix typo in syntax script](https://github.com/vim/vim/commit/b2113e511f49761e5fd4fb20781115e379765608)\n* [runtime(doc): remove trailing whitespace from example in builtin.txt](https://github.com/vim/vim/commit/45b59a92ce06532aafa074e18aa9c3b44297ec8a)\n* [runtime(doc): clarify how to call complete() funcs](https://github.com/vim/vim/commit/f79e262ffc55a3a6b9f47b0aa0ed63a137045f98)\n* [runtime(m4): Improve parameters highlighting in syntax script](https://github.com/vim/vim/commit/8801c9db2e8e5da90b2e52ceacfd726543d12407)\n* [9.1.1765](https://github.com/vim/vim/commit/19fa46a469743653a16a48c4222482d9f33e30a2): f\_isnan() and f\_isinf() do not correctly initialize rettv type\n* [runtime(termdebug): drop outdated comment from termdebug.vim](https://github.com/vim/vim/commit/049c76f0e8a1cc26d724fca1a83bfd2da7012403)\n* [runtime(colors): update colorschemes:](https://github.com/vim/vim/commit/b1b80506ceea26e8e0860cdfb0933fd9e290bb1f)\n* [runtime(doc): Fix typos in eval.txt](https://github.com/vim/vim/commit/f9dad9e3990b3a39d1bd8dc7b9fdd52fe5294996)\n* [Fix some typos in documentation, C code and test files](https://github.com/vim/vim/commit/0e46e761fc2ea39915e55719d56bfe47a0985c12)\n* [9.1.1764](https://github.com/vim/vim/commit/817e4d3ee6b051477596ba1d86a2631d9fabc95b): filetype: CODEOWNERS file not recognized\n* [9.1.1763](https://github.com/vim/vim/commit/a946ccf5ffdb7bbc2631c5cbebde18b75a5e284b): filetype: kitty config files are not recognized\n* [9.1.1762](https://github.com/vim/vim/commit/5c9b71d63c1b324c6f4c7b84faf3fafa40c3fcc5): completion: selected item not cleared on \<BS> with 'ac'\n* [Problem:  'ruler' is set in defaults.vim](https://github.com/vim/vim/commit/ba36510920654a52d8b5908f5a61c6969bb31942)\n* [runtime(doc): Improve doc for cmdline-ranges in cmdline.txt](https://github.com/vim/vim/commit/d4c2cb4b271b3e018d13a51245714a387d7006ec)\n* [runtime(doc): Improve the doc for :syn-containedin](https://github.com/vim/vim/commit/8e0d374e4d3f1be11e64010d69b6d9a5e913ec8d)\n* [runtime(doc): typo in recent doc style tweaks in options.txt](https://github.com/vim/vim/commit/958ae91f3a179002029afc712a9aee5cd93c8929)
+* [runtime(kitty): Fix typo in syntax file for kitty](https://github.com/vim/vim/commit/115b5338da6035f76c07eaae9340e065f9bd4c60)\n* [9.1.1766](https://github.com/vim/vim/commit/afa2a81a88d123d4c39a75bddfc41559b81188b2): Vim9: some functions do not handle null\_string correctly\n* [runtime(doc): Tweak doc style in syntax.txt](https://github.com/vim/vim/commit/0b7d094d70eaeb2dbb1288144c28ad2a6fd05902)\n* [runtime(doc): mention generic log highlighter](https://github.com/vim/vim/commit/684edc7dceea2e5c4f840eb6465595b78459e2f1)\n* [runtime(doc): fix doc style from commit 5c9b71d63c1](https://github.com/vim/vim/commit/10d1ec658cc4f0d5fca5d8518edcadf6027450e8)