Stop trying to close the open process

execute_to_log tries to be good and clean up the open file descriptors.
However it would also try and close the subprocess which cleans itself
up. Avoid "IOError: [Errno 9] Bad file descriptor" by skipping over the
subprocess file descriptor.

Change-Id: Iae7d21bbacd07f487fb56592ea12cbd4edb06ca4

turbo_hipster/lib/utils.py

@@ -186,6 +186,9 @@ def execute_to_log(cmd, logfile, timeout=-1,
     # Clean up
     for fd, descriptor in descriptors.items():
         poll_obj.unregister(fd)
+        if fd == p.stdout.fileno():
+            # Don't try and close the process, it'll clean itself up
+            continue
         os.close(fd)
     try:
         p.kill()