normally lengtens the file if it's shorter than specified length
also change wording slighly, to match wording in SUS
XXX someone should check how much of SUS truncate(2) specification is true
XXX on NetBSD and update this manpage accordingly
high-order bit set", as this error is obsolete.
Eventually we may want to add code to some of the "optional" filesystems
(msdosfs, etc.) that checks for illegal characters. At that time it would
be appropriate to reintroduce this error with appropriate text. Perhaps
"The pathname contains a character that is not valid for filesystem type".
Use .Fn rather than .Nm macro in HISTORY and STANDARDS sections.
Use .At and .St macros instead of spelling out "Version 6 UNIX",
"IEEE 1003.1-1988 (POSIX)", etc.