It isn't valid to check errno without setting it first, unless an

It isn't valid to check errno without setting it first, unless an
error return value already indicated that errno was set.  Also, we might
as well accept any error or junk remaining in the field as a parse error.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@95743 13f79535-47bb-0310-9956-ffa450edef68