Commit Briefs
switch from SIMPLEQ to equivalent STAILQ macros
The singly-linked tail queue macros were added to OpenBSD 6.9 and are more widely available on other systems. ok stsp
Stop including <sys/syslimits.h> directly.
POSIX says the limits defined there are available from <limits.h>, which almost all affected source files already included anyway. ok millert stsp