fix some typos in msrpim.py

darcs-hash:20090217133017-b2873-31a3ca7e952bf6be68b73f978c5011e554cf2d18
use proc.wrap_errors instead of proc.trap_errors

darcs-hash:20090217133628-b2873-84f989d626d1a5d8da17f49b1657b42c59525263