include <sys/syslimits.h> and switch to use of LOGIN_NAME_MAX, making this far more standalone.  discussed with guenther ok millert
include <sys/syslimits.h> and switch to use of LOGIN_NAME_MAX, making
this far more standalone.  discussed with guenther
ok millert

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars