[WhenToUseGet-7] oops, thinko in URLencoding proposal

Somebody actually read my proposal in detail and pointed out that it was 
wrong.  Retake:
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Here's the canonical RPC example from http://www.w3.org/TR/xmlp-scenarios

  <r:GetLastTradePrice 
env:encodingStyle="http://www.w3.org/2001/12/soap-encoding"
              xmlns:r="http://example.org/2001/06/quotes">
   <r:Symbol>DEF</r:Symbol></r:GetLastTradingPrice>

This becomes something like

http://example.org/SoapGet?ns=http://example.org/2001/06/quotes&serv=GetLastTradingPrice&Symbol=DEF

I don't provide the encodingStyle - let's assert that if you do it this 
way you get soap-encoding by default (or in fact that that's all you can 
have).  To simplify, let's say that the service namespace is by default 
a relative URI reference with the base established by the that of the 
URI itself, thus

http://example.org/SoapGet?ns=/2001/06/quotes&Serv=GetLastTradingPrice&Symbol=DEF