vim-patch:9.1.0243: filetype: netrw history file is not recognized

Problem:  filetype: netrw history file is not recognized
Solution: Detect .netrwhist as vim files (Wu, Zhenyu)

closes: vim/vim#14364

vim/vim@abbb4a4

Co-authored-by: Wu, Zhenyu <[email protected]>

Author: clason

runtime/lua/vim/filetype.lua

@@ -1542,6 +1542,7 @@ local filename = {
   vgrindefs = 'vgrindefs',
   ['.exrc'] = 'vim',
   ['_exrc'] = 'vim',
+  ['.netrwhist'] = 'vim',
   ['_viminfo'] = 'viminfo',
   ['.viminfo'] = 'viminfo',
   ['.wgetrc'] = 'wget',

test/old/testdir/test_filetype.vim

@@ -707,7 +707,7 @@ func s:GetFilenameChecks() abort
     \ 'vgrindefs': ['vgrindefs'],
     \ 'vhdl': ['file.hdl', 'file.vhd', 'file.vhdl', 'file.vbe', 'file.vst', 'file.vhdl_123', 'file.vho', 'some.vhdl_1', 'some.vhdl_1-file'],
     \ 'vhs': ['file.tape'],
-    \ 'vim': ['file.vim', '.exrc', '_exrc', 'some-vimrc', 'some-vimrc-file', 'vimrc', 'vimrc-file'],
+    \ 'vim': ['file.vim', '.exrc', '_exrc', 'some-vimrc', 'some-vimrc-file', 'vimrc', 'vimrc-file', '.netrwhist'],
     \ 'viminfo': ['.viminfo', '_viminfo'],
     \ 'vmasm': ['file.mar'],
     \ 'voscm': ['file.cm'],