patch 8.2.0557: no IPv6 support for channels

Problem:    No IPv6 support for channels.
Solution:   Add IPv6 support. (Ozaki Kiichi, closes #5893)
diff --git a/src/testdir/test_escaped_glob.vim b/src/testdir/test_escaped_glob.vim
index da5963e..4b580ac 100644
--- a/src/testdir/test_escaped_glob.vim
+++ b/src/testdir/test_escaped_glob.vim
@@ -1,7 +1,7 @@
 " Test whether glob()/globpath() return correct results with certain escaped
 " characters.
 
-function SetUp()
+func SetUp()
   " consistent sorting of file names
   set nofileignorecase
 endfunction