[MacPorts] #20053: Document the port naming convention of replacing ++ with xx

[MacPorts]

#20053: Document the port naming convention of replacing ++ with xx
------------------------------+---------------------------------------------
 Reporter:  blb@…             |       Owner:  markd@…           
     Type:  defect            |      Status:  new               
 Priority:  Normal            |   Milestone:                    
Component:  guide             |     Version:  1.8.0             
 Keywords:                    |        Port:                    
------------------------------+---------------------------------------------

Comment(by jmr@…):

 The motivation being of course that the + could be (and probably is)
 misinterpreted as the start of a variant.

-- 
Ticket URL: <http://trac.macports.org/ticket/20053#comment:1>
MacPorts <http://www.macports.org/>
Ports system for Mac OS