patch 9.0.0101: invalid memory access in diff mode with "dp" and undo Commit: https://github.com/vim/vim/commit/4e677b9c40ccbc5f090971b31dc2fe07bf05541d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jul 28 18:44:27 2022 +0100 patch 9.0.0101: invalid memory access in diff mode with "dp" and undo Problem: Invalid memory access in diff mode with "dp" and undo. Solution: Make sure the line number does not go below one.

/^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/