Eric Brown 1310d18275 Allow output to default to stdout using argparse
The argparse module already has the capability to default to stdout
at CLI parameter definition time. This patch utilizes this and avoids
the opening of the output file by each formatter.

Change-Id: Ib1e89492558fe1fc06966711b6014bd5b86b84c8
2016-06-15 11:23:53 -07:00
..
2015-09-01 10:20:05 -07:00
2016-03-23 16:18:11 +00:00
2016-01-08 10:06:22 +11:00
2016-02-17 16:03:01 -08:00
2015-09-04 18:59:25 -07:00