master
for some time now mandoc has not required MLINKS to function correctly - logically complete that now by removing MLINKS from base;
Avoid gendered language in man pages when not referring to a specific person. Rewrite or use singular they.
Do not mention sliplogin(8) and sl(4).
use the UNIX-related macros (.At and .Ux) where appropriate.
Add where missing and harmonize PATH to be _PATH_DEFPATH (without local nor X11R6). Suggested by tb@
Don't restrict what login name may be removed, the account may have been made with a tool other than adduser and thus may use characters adduser considers illegal. OK henning@ and krw@