vim: Import v9.1.0781

* 9.1.0781: tests: test_filetype fails
* 9.1.0780: MS-Windows: incorrect Win32 error checking
* 9.1.0779: filetype: neomuttlog files are not recognized
* 9.1.0778: filetype: lf config files are not recognized
* runtime(comment): fix commment toggle with mixed tabs & spaces
* runtime(misc): Use consistent "Vim script" spelling
* runtime(gleam): add ftplugin for gleam files
* runtime(doc): link help-writing from write-local-help

gitlog.txt

@@ -1 +1 @@
-* [9.1.0777](https://github.com/vim/vim/commit/367499c5c39057bca267716d9aad20554d4d83fd): filetype: Some upstream php files are not recognized\n* [runtime(java): Define javaBlockStart and javaBlockOtherStart hl groups](https://github.com/vim/vim/commit/05d0893ed8d991ed3fa23da7c7d4efe6ffd58798)\n* [runtime(doc): mention conversion rules for remote\_expr()](https://github.com/vim/vim/commit/1961cafc998e8c63f4f06b12b496c97c61cc3411)\n* [runtime(tutor): Fix missing :s command in spanish translation section 4.4](https://github.com/vim/vim/commit/eac806bf0b82fb15e45fa9a15ad071553715b617)\n* [9.1.0776](https://github.com/vim/vim/commit/ea997edc7aaa5bc1d645b57b6700e0b30c07acbd): test\_strftime may fail because of missing TZ data\n* [translation(am): Add Armenian language translation](https://github.com/vim/vim/commit/59086a25c4a724c13447aa421c993e5441a628f6)\n* [9.1.0775](https://github.com/vim/vim/commit/484facebe4a0fb775ad011a99ba007f55fc4f11a): tests: not enough tests for setting options
+* [9.1.0781](https://github.com/vim/vim/commit/7d755d8ef328a3eced18c57ea1b569898cc448a2): tests: test\_filetype fails\n* [9.1.0780](https://github.com/vim/vim/commit/b516598092b37be5b486373b44fbc5a26ef54540): MS-Windows: incorrect Win32 error checking\n* [9.1.0779](https://github.com/vim/vim/commit/a2aa921f767da17d4b619f41b7a1210c762c91e2): filetype: neomuttlog files are not recognized\n* [9.1.0778](https://github.com/vim/vim/commit/0f146b7925178a5bdfdc8e07642976f0b76d9612): filetype: lf config files are not recognized\n* [runtime(comment): fix commment toggle with mixed tabs & spaces](https://github.com/vim/vim/commit/f64bafd98a775de4b8a762c411ee11d6411bba7d)\n* [runtime(misc): Use consistent "Vim script" spelling](https://github.com/vim/vim/commit/a4205471adae39c80fb7f151a4f33051fcb80001)\n* [runtime(gleam): add ftplugin for gleam files](https://github.com/vim/vim/commit/6e918538b117c8c0b87a3d30300e8bbd073d652c)\n* [runtime(doc): link help-writing from write-local-help](https://github.com/vim/vim/commit/5dcee3c723b817fcd14c9abc7435e5cc4c0fc862)