unexpected build script messages on windows

[whoburg]

pointed out by @galbramc on #961. quoting him,

"
@bqpd I don't think you fixed the problem though. I'm still seeing the message:

# Looking for mosek_cli
# Build script does not support mosek_cli your architecture (64bit)
# Did not find mosek_cli

https://acdl.mit.edu/csi/job/gpkit_Push/buildnode=windows10x64,optimizer=mosek/356/console

If you look further down below it says:

Replaced found solvers (['mosek', 'cvxopt']) with environment var GPKITSOLVERS (mosek, mosek_cli)

"