/usr/share/vim/vim80/ftplugin/csc.vim is in vim-runtime 2:8.0.1453-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | " Vim filetype plugin file
" Language: csc
" Maintainer: Dan Sharp <dwsharp at users dot sourceforge dot net>
" Last Changed: 20 Jan 2009
" URL: http://dwsharp.users.sourceforge.net/vim/ftplugin
if exists("b:did_ftplugin") | finish | endif
let b:did_ftplugin = 1
" Make sure the continuation lines below do not cause problems in
" compatibility mode.
let s:save_cpo = &cpo
set cpo-=C
if exists("loaded_matchit")
let b:match_words=
\ '\<fix\>:\<endfix\>,' .
\ '\<if\>:\<else\%(if\)\=\>:\<endif\>,' .
\ '\<!loopondimensions\>\|\<!looponselected\>:\<!endloop\>'
endif
" Undo the stuff we changed.
let b:undo_ftplugin = "unlet! b:match_words"
" Restore the saved compatibility options.
let &cpo = s:save_cpo
unlet s:save_cpo
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