Patch by Serhiy Storchaka.

#16112: platform.architecture does not correctly escape argument to /usr/bin/file. Fix original patch

#16112: platform.architecture does not correctly escape argument to /usr/bin/file. Use 'communicate()' and decode the bytes

Thanks to Roger Serwy for patch.

to return a returncode of 0 when the child has already exited or cannot
be waited on.

Thanks for the e-mail report to docs@.

  default arguments.  Patch contributed by Chris Jerdonek.

method doesn't require an argument again.