core: 'xauth list|grep yl4p |awk '{print }' == 0' => 'x != 0' to avoid a...

core: 'xauth list|grep yl4p |awk '{print }' == 0' => 'x != 0' to avoid a compiler warning (suggesting parens).

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1737103 13f79535-47bb-0310-9956-ffa450edef68