K 10 svn:author V 3 gad K 8 svn:date V 27 2004-06-27T22:56:58.000000Z K 7 svn:log V 213 Improve checking for `ps -t ', and give better error messages when an invalid is specified. Aside: It turns out that the S_ISCHR() check is true for almost every device that we have (not just tty's). END