[docs] [issue14879] invalid docs for subprocess exceptions with shell=True

Chris Rebert <pybugs@rebertia.com> added the comment: Eh, just needs clarification along the lines of: "Exceptions raised in the child ++Python++ process" "A ValueError will be raised if Popen is called with invalid arguments ++whose validity is not dependent upon the state of the environment++." ---------- nosy: +cvrebert _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue14879> _______________________________________