spaces between specifiers in strptime() formats -- strftime()?
	format printing: copy format to another buffer, skipping certain char
test with other libc's (newlib? musl? fbsd? obsd?)
`./@ 7:00 PM` doesn't work with musl strptime()
--disable-tests to shrink executable size
	find strtol() in configure
maybe sscanf() instead of strtol()
formats test
test other times
"." in date/time formats
gettext?