The current config.guess in APR outputs i386-pc-os2-emx on OS/2 rather than

i386-pc-os2_emx (dash instead of underscore), adjust the tests to match.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@122967 13f79535-47bb-0310-9956-ffa450edef68