Changes in this release:
* New command set-tab-width to change the tabulator width on a per-buffer
basis.
* Let the space-to-tabstop command move to the right position even if
the line contains tabs, control characters, or non-ASCII bytes.
* Fall back to /bin/sh if $SHELL is undefined.
* Fix parsing of tag files with duplicate entries. Instead of erroring
out, ignore duplicates. Fixes using /var/db/libc.tags again.
* Change the visit-tags-table command to immediately load the tag
file, and drop the lazy mechanics.
* Do not leak memory in pop-tag-mark if it fails to switch buffers.
* Fix a read buffer overrun caused by -u arguments longer than 1023 bytes.
* Fix a write buffer overrun on the stack caused by blink-and-insert
matching a very long line that is not currently visible in the
window.
* Skip checking permissions of conffile with access(2).
* Resurrect no-tab-mode and add it to the list of modes that can be
set with set-default-mode.
From: https://www.openbsd.org/74.html
PR: 274611
b47b76304c