commit 05c11d3e1a7fc0079fca4ccf3694a88a9d2d0146
Author: Antony Lee <anntzer.lee@gmail.com>
Date:   Mon Jul 16 12:02:56 2018 +0200

    Set vim 'commentstring' option in ftplugin/PKGBUILD.vim.
    
    This option enables, in particular, commenting plugings (e.g.
    https://github.com/tomtom/tcomment_vim) to know how toggle comments on
    PKGBUILDs.  See FS#59321.
    
    Signed-off-by: Antony Lee <anntzer.lee@gmail.com>

diff --git a/src/Makefile.am b/src/Makefile.am
index 792da70..e756899 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -14,11 +14,15 @@ bin_SCRIPTS = \
 bin_PROGRAMS = pacsort pactree
 
 vim_ftdetect_dir = $(vim_dir)/ftdetect
+vim_ftplugin_dir = $(vim_dir)/ftplugin
 vim_syntax_dir = $(vim_dir)/syntax
 
 vim_ftdetect__DATA = \
 	vim/ftdetect/PKGBUILD.vim
 
+vim_ftplugin__DATA = \
+	vim/ftplugin/PKGBUILD.vim
+
 vim_syntax__DATA = \
 	vim/syntax/PKGBUILD.vim
 
@@ -62,7 +66,8 @@ EXTRA_DIST = \
 	rankmirrors.sh.in \
 	updpkgsums.sh.in \
 	vim/syntax/PKGBUILD.vim \
-	vim/ftdetect/PKGBUILD.vim
+	vim/ftdetect/PKGBUILD.vim \
+	vim/ftplugin/PKGBUILD.vim
 
 # Files that should be removed, but which Automake does not know.
 MOSTLYCLEANFILES = $(OURSCRIPTS) $(OURFILES) *.tmp
diff --git a/src/vim/ftplugin/PKGBUILD.vim b/src/vim/ftplugin/PKGBUILD.vim
new file mode 100644
index 0000000..cbb46a9
--- /dev/null
+++ b/src/vim/ftplugin/PKGBUILD.vim
@@ -0,0 +1,4 @@
+if exists("b:did_ftplugin") | finish | endif
+let b:did_ftplugin = 1
+
+setlocal commentstring=#\ %s