We do *NOT* permit options before hostnames. It's always hostnames
before options. It's _within_ the options that the use of a transport
name as an option name had been accidentally constrained to come last,
which was then fixed in commit
833c70bc.
I goofed in describing this.
JH/16 Fix logging of delivery remote port, when specified by router, under
callout/hold.
-PP/06 Repair manualroute's ability to take options before hostnames.
+PP/06 Repair manualroute's ability to take options in any order, even if one
+ is the name of a transport.
Fixes bug 2140.