* vim-patch:4d8f476176ea

Update runtime files
https://github.com/vim/vim/commit/4d8f476176eadfc745bcb8e143460029048f858d

skip nsis/README.txt
skip doc/vim9.txt
skip src/nvim/po/it.po

Update runtime files.
https://github.com/vim/vim/commit/e7b1ea0276cc83cd5c612f3189a174a60d57b5ed

Update runtime files
https://github.com/vim/vim/commit/b17893aa940dc7d45421f875f5d90855880aad27

Omit feedkeys() changes.

Update runtime files
https://github.com/vim/vim/commit/0c0734d527a132edfb4089be48486586424b3f41

Omit rand(), srand() documentation.
Patch v8.1.2342 is not ported yet.

Update runtime files.
https://github.com/vim/vim/commit/68e6560b84f196c82e27a72669684d5506a3a837

This was added in 549311db7d400 for some reason, it usually just looks
weird.

Long overdue runtime update.

https://github.com/vim/vim/commit/01164a6546b4c635daf96a1f17d1cb2d07f32a66

Update runtime files.

Includes changing &sw to shiftwidth() for all indent scripts.

https://github.com/vim/vim/commit/3ec574f2b549f456f664f689d6da36dc5719aeb9

Updated runtime files.

https://github.com/vim/vim/commit/64d8e25bf6efe5f18b032563521c3ce278c316ab

Closes #6611