patch 9.0.1269: channel test often fails on Mac OS Commit: https://github.com/vim/vim/commit/b40c1de38442a26f31efb8473adec7fad560f3d0 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 31 21:01:08 2023 +0000 patch 9.0.1269: channel test often fails on Mac OS Problem: Channel test often fails on Mac OS. Solution: Increase the wait time from one to 15 milliseconds. (D. Ben Knoble, closes #11894)

/^CFLAGS[[:blank:]]*=/s/$/ -Wall -Wextra -Wshadow -Werror/
/^PERL_CFLAGS_EXTRA[[:blank:]]*=/s/$/ -Wno-error=unused-function/
/^RUBY_CFLAGS_EXTRA[[:blank:]]*=/s/$/ -Wno-error=unused-parameter/