Use string interpolation (#12823)

[Christian Brabandt]

Use string interpolation (#12823)

Commit: https://github.com/vim/vim/commit/bfc461f756c9b933ea6c5d776244667b6b1a84ef
Author: Yegappan Lakshmanan <4298407+...@users.noreply.github.com>
Date: Thu Aug 17 13:28:33 2023 -0700

Use string interpolation (https://github.com/vim/vim/issues/12823)

diff --git a/runtime/pack/dist/opt/cfilter/plugin/cfilter.vim b/runtime/pack/dist/opt/cfilter/plugin/cfilter.vim
index 7a6563078..7a71de476 100644
--- a/runtime/pack/dist/opt/cfilter/plugin/cfilter.vim
+++ b/runtime/pack/dist/opt/cfilter/plugin/cfilter.vim
@@ -1,7 +1,7 @@
vim9script

# cfilter.vim: Plugin to filter entries from a quickfix/location list
-# Last Change: Jun 30, 2022
+# Last Change: August 16, 2023
# Maintainer: Yegappan Lakshmanan (yegappan AT yahoo DOT com)
# Version: 2.0
#
@@ -31,11 +31,11 @@ def Qf_filter(qf: bool, searchpat: string, bang: string)
if qf
Xgetlist = function('getqflist')
Xsetlist = function('setqflist')
- cmd = ':Cfilter' .. bang
+ cmd = $':Cfilter{bang}'
else
Xgetlist = function('getloclist', [0])
Xsetlist = function('setloclist', [0])
- cmd = ':Lfilter' .. bang
+ cmd = $':Lfilter{bang}'
endif

firstchar = searchpat[0]
@@ -62,7 +62,7 @@ def Qf_filter(qf: bool, searchpat: string, bang: string)
endif

items = filter(Xgetlist(), Cond)
- title = cmd .. ' /' .. pat .. '/'
+ title = $'{cmd} /{pat}/'
Xsetlist([], ' ', {title: title, items: items})
enddef