pathchk no longer accepts trailing options, e.g., "pathchk -p foo -b"
now treats -b as a file name to check, not as an invalid option.
+ pr now supports page numbers up to 2**64 on most hosts, and it
+ detects page number overflow instead of silently wrapping around.
+ pr now accepts file names that begin with "+" so long as the rest of
+ the file name does not look like a page range.
+
printf has several changes:
It now uses 'intmax_t' (not 'long int') to format integers, so it