out the parse loop to a seperate function, and move local variables around as
is needed. To keep the state of some variables and keep from having huge arg
lists to functions, make a bunch global.
Change use of err(3) in situations where malloc(3) will be setting errno to
errx(3) since assuming malloc(3) sets errno is non-portable, and provides no
more useful information in the context of FreeBSD.
Submitted by: bde (err/errx), Carl Schmidt <cschmidt@slackerbsd.org> (some
of the movement of the input loop to a function)
Approved by: src/tools/regression/usr.bin/xargs
9fdf8815bf