patch 8.2.3999: redundant check for NUL byte Commit: https://github.com/vim/vim/commit/c024ed9233feac4c8da7394a62bb50474803514f Author: zeertzjq <zeertzjq@outlook.com> Date: Tue Jan 4 16:22:52 2022 +0000 patch 8.2.3999: redundant check for NUL byte Problem: Redundant check for NUL byte. Solution: Remove the check for a NUL byte. (closes https://github.com/vim/vim/issues/9471)

/^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/