LU-3154: Fix plot-sgpdd to match new sgpdd-survey output format

The fields in sgpdd-survey output have changed. This updates plot-sgpdd to
work correctly. One field 'rsz' has changed from numeric to string, new
variable added to deal with that.
Fix for trailing tabs on two lines. Cleaned up tabs per Andreas.
Removed one more trailing tab.

Change-Id: I754d5fec6f6aebbc0882386d2734aa6805eb8de5
Signed-off-by: Cliff White <cliffwhi@intel.com>
Signed-off-by: Cliff White <cliffw@whamcloud.com>
Reviewed-on: http://review.whamcloud.com/6023


Tested-by: Hudson
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Keith Mannthey <keith.mannthey@intel.com>