runtime(gitcommit): Updates to ftplugin and syntax
diff --git a/runtime/syntax/gitcommit.vim b/runtime/syntax/gitcommit.vim
index 42c8d44..bce6772 100644
--- a/runtime/syntax/gitcommit.vim
+++ b/runtime/syntax/gitcommit.vim
@@ -2,7 +2,7 @@
" Language: git commit file
" Maintainer: Tim Pope <vimNOSPAM@tpope.org>
" Filenames: *.git/COMMIT_EDITMSG
-" Last Change: 2022 Jan 05
+" Last Change: 2023 Dec 28
if exists("b:current_syntax")
finish
@@ -21,7 +21,11 @@
syn include @gitcommitDiff syntax/diff.vim
syn region gitcommitDiff start=/\%(^diff --\%(git\|cc\|combined\) \)\@=/ end=/^\%(diff --\|$\|@@\@!\|[^[:alnum:]\ +-]\S\@!\)\@=/ fold contains=@gitcommitDiff
-syn match gitcommitSummary "^.*\%<51v." contained containedin=gitcommitFirstLine nextgroup=gitcommitOverflow contains=@Spell
+if get(g:, 'gitcommit_summary_length') < 0
+ syn match gitcommitSummary "^.*$" contained containedin=gitcommitFirstLine nextgroup=gitcommitOverflow contains=@Spell
+elseif get(g:, 'gitcommit_summary_length', 1) > 0
+ exe 'syn match gitcommitSummary "^.*\%<' . (get(g:, 'gitcommit_summary_length', 50) + 1) . 'v." contained containedin=gitcommitFirstLine nextgroup=gitcommitOverflow contains=@Spell'
+endif
syn match gitcommitOverflow ".*" contained contains=@Spell
syn match gitcommitBlank "^.\+" contained contains=@Spell
syn match gitcommitFirstLine "\%^.*" nextgroup=gitcommitBlank,gitcommitComment skipnl