Commit: runtime(filetype): ft detection maybe wrong if 'fic' set for *.[CH]

[Christian Brabandt]

runtime(filetype): ft detection maybe wrong if 'fic' set for *.[CH]

Commit: https://github.com/vim/vim/commit/fa920da283f6651083b40d0aa28a9eacd5116593
Author: shane.xb.qian <shane...@foxmail.com>
Date: Mon Dec 11 17:33:03 2023 +0100

runtime(filetype): ft detection maybe wrong if 'fic' set for *.[CH]

So only set the filetype to cpp for *.C and *.H files, if
'fileignorecase' option is not set.

Signed-off-by: shane.xb.qian <shane...@foxmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index e7343bd6f..4043eb428 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1,7 +1,7 @@
" Vim support file to detect file types
"
" Maintainer: The Vim Project <https://github.com/vim/vim>
-" Last Change: 2023 Aug 10
+" Last Change: 2023 Dec 06
" Former Maintainer: Bram Moolenaar <Br...@vim.org>

" Listen very carefully, I will say this only once
@@ -348,7 +348,7 @@ au BufNewFile,BufRead *.cypher setf cypher
" C++
au BufNewFile,BufRead *.cxx,*.c++,*.hh,*.hxx,*.hpp,*.ipp,*.moc,*.tcc,*.inl setf cpp
if has("fname_case")
- au BufNewFile,BufRead *.C,*.H setf cpp
+ au BufNewFile,BufRead *.C,*.H if !&fileignorecase | setf cpp | endif
endif

" C++ 20 modules (clang)