Update runtime files

runtime/compiler/podchecker.vim

@@ -0,0 +1,28 @@
+" Vim compiler file
+" Compiler:      podchecker
+" Maintainer:    vim-perl <vim-perl@googlegroups.com>
+" Author:        Doug Kearns <dougkearns@gmail.com>
+" Homepage:      https://github.com/vim-perl/vim-perl
+" Bugs/requests: https://github.com/vim-perl/vim-perl/issues
+" License:       Vim License (see :help license)
+" Last Change:   2021 Oct 20
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "podchecker"
+
+if exists(":CompilerSet") != 2          " older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=podchecker\ -w
+CompilerSet errorformat=\*\*\*\ %tRROR:\ %m\ at\ line\ %l\ in\ file\ %f,
+                       \\*\*\*\ %tARNING:\ %m\ at\ line\ %l\ in\ file\ %f,
+                       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save