Get the HTTP-on-HTTPS hint to come through again. We're in AP_MODE_GETLINE

Get the HTTP-on-HTTPS hint to come through again.  We're in AP_MODE_GETLINE
at this point, so the \r\n\r\n just confuses the http input filter.

One concern: this patch is only correct as long as we only ever call this
function while in AP_MODE_GETLINE.  Ideally we would account for the mode
and return the newlines if not in GETLINE mode, but at the moment it doesn't
seem to matter.

Reviewed by: Doug MacEachern

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@94453 13f79535-47bb-0310-9956-ffa450edef68