vim: Import v8.2.4980

* 8.2.4980: when 'shortmess' contains 'A' loading session may still warn
* 8.2.4979: accessing freed memory when line is flushed
* 8.2.4978: no error if engine selection atom is not at the start
* 8.2.4977: memory access error when substitute expression changes window
* 8.2.4976: Coverity complains about not restoring a saved value

Author: chrisbra

gitlog.txt

@@ -1 +1 @@
-* [8.2.4975](https://github.com/vim/vim/commit/51f0bfb88a3554ca2dde777d78a59880d1ee37a8): recursive command line loop may cause a crash\n* [8.2.4974](https://github.com/vim/vim/commit/4748c4bd64610cf943a431d215bb1aad51f8d0b4): ":so" command may read after end of buffer\n* [8.2.4973](https://github.com/vim/vim/commit/bd3a9d2c946bae0427d7c9b9249716064935fb4e): Vim9: type error for list unpack mentions argument\n* [8.2.4972](https://github.com/vim/vim/commit/1ff9c44267ce487145d22d75a96370d7f96ae8dd): Vim9: compilation fails when using dict member when skipping\n* [8.2.4971](https://github.com/vim/vim/commit/40c141d333292d625907f4de13766cbbc2223911): Vim9: interpolated string seen as range\n* [8.2.4970](https://github.com/vim/vim/commit/0d03263fd731986c0eee1a08e0f1b19f1bc3a7ad): "eval 123" gives an error, "eval 'abc'" does not
+* [8.2.4980](https://github.com/vim/vim/commit/aaadb5b6f76ea03e5eb460121f3dbf46ad04ce50): when 'shortmess' contains 'A' loading session may still warn\n* [8.2.4979](https://github.com/vim/vim/commit/28d032cc688ccfda18c5bbcab8b50aba6e18cde5): accessing freed memory when line is flushed\n* [8.2.4978](https://github.com/vim/vim/commit/360da40b47a84ee8586c3b5d062f8c64a2ac9cc6): no error if engine selection atom is not at the start\n* [8.2.4977](https://github.com/vim/vim/commit/e2bd8600b873d2cd1f9d667c28cba8b1dba18839): memory access error when substitute expression changes window\n* [8.2.4976](https://github.com/vim/vim/commit/b1040dc11fa15818eda724c35a334f460cf98005): Coverity complains about not restoring a saved value