Fix MSVC 7.1 IDE path (for MSVS detection code) in Tool/MSCommon/vs.py.
Fix MSVC 7.1 IDE path (for MSVS detection code) in Tool/MSCommon/vs.py.

Distrotech/scons,Distrotech/scons,Distrotech/scons,Distrotech/scons,Distrotech/scons