get_status_output uses shell=True in Popen

[Johan Hake]

subprocess.Popen should not use shell=True. It is a security hazard and spawn of host system dependent $SHELL process. Also see:

http://stackoverflow.com/questions/3172470/actual-meaning-of-shell-true-in-subprocess

This issue might also be the root of the problem we see with JIT on HPC platforms.

[Johan Hake]

get_status_output now uses shell=False -- Fixing issue #2

→ <<cset ff7a37e855ce>>