Fix infinite loop in wait
Fix infinite loop in wait

When it runs into this branch, n never increases and the ports never
changes.

kealist/ren-c,codebybrett/ren-c,rgchris/ren-c,hostilefork/rebol,kealist/ren-c,kealist/ren-c,kealist/ren-c,draegtun/ren-c,hostilefork/rebol,giuliolunati/ren-c,giuliolunati/ren-c,mbk/ren-c,kealist/ren-c,rgchris/ren-c,hostilefork/rebol,hostilefork/rebol,mbk/ren-c,codebybrett/ren-c,draegtun/ren-c,mbk/ren-c,draegtun/ren-c,rgchris/ren-c,hostilefork/rebol,draegtun/ren-c,giuliolunati/ren-c,codebybrett/ren-c,draegtun/ren-c,giuliolunati/ren-c,codebybrett/ren-c,codebybrett/ren-c,mbk/ren-c,rgchris/ren-c,giuliolunati/ren-c,kealist/ren-c,draegtun/ren-c,codebybrett/ren-c,hostilefork/rebol,rgchris/ren-c