Implementing convert setrevmap (for p4.py)

[Frank A. Kingswood]

Hallo!

Tom pointed out that convert/p4.py does not implement setrevmap and 
therefore is not easily used incrementally.
The documentation is pretty light on this. How is it supposed to work?

I see setrevmap is called only once at the start of a conversion but it 
gets used in filemap.py as well.

Frank
-- 
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Frank A. Kingswood                      frank at kingswood-consulting.co.uk
Cambridge, United Kingdom                               +44-870-095 0000