1234852Sbaptdnl $FreeBSD$
2234852Sbaptpatsubst(`string with a + to replace with a minus', `+', `minus')
3234852Sbaptpatsubst(`string with aaaaa to replace with a b', `a+', `b')
4234852Sbaptpatsubst(`+string with a starting + to replace with a minus', `^+', `minus')
5