Report and Aggregate default duration is 8 days, not 7

[pceBuildMaster]

The docs state for both Report and Aggregate: By default, the time spent the last 7 days is printed.

But both put out 8 days. Example from today:

Fri 07 February 2020 -> Fri 14 February 2020

Company training - 1h 45m 38s
	[overhead  1h 45m 38s]

Aggregate clearly shows time from both Fridays is included:

Fri 07 February 2020 - 8h 00m 00s
  Full automation run on hosted Testrail - 2h 00m 00s
	[run-analysis  2h 00m 00s]

  Migrate Testlog to Testrail - 6h 00m 00s
	[coding  6h 00m 00s]


Sat 08 February 2020 - 2h 00m 00s
  Full automation run on hosted Testrail - 1h 00m 00s
	[run-analysis  1h 00m 00s]

  Full-time remote proposal - 1h 00m 00s
	[overhead  1h 00m 00s]

...

Thu 13 February 2020 - 10h 41m 50s
  Full-time remote proposal - 2h 03m 12s
	[overhead  2h 03m 12s]

  Meeting - 1h 29m 33s
	[overhead  1h 29m 33s]

  Migrate Testlog to Testrail - 6h 12m 49s
	[coding  5h 13m 14s]
	[overhead     59m 35s]

  Setup time tracking system - 56m 16s
	[overhead     56m 16s]


Fri 14 February 2020 - 2h 05m 18s
  Meeting - 35m 42s
	[overhead     35m 42s]

  Migrate Testlog to Testrail - 1h 10m 01s
	[coding  1h 10m 01s]

  Planning - 19m 35s
	[overhead     19m 35s]

[pceBuildMaster]

To be clear 'the last 7 days' is not the same as '7 days ago'. The first includes today, the last does not.

Most importantly, if the default behavior for a report is to cover the work done in the last week than 'the last 7 days' is desired.

Work-around using date that only has concept of days ago:

weekend="$(date '+%Y-%m-%d')"
weekstart="$(date --date='6 days ago' '+%Y-%m-%d')"
watson report --from $weekstart --to $weekend -G | sed 's/\t/    /g' 

(note watson output is mix of spaces and tabs for formatting thus the sed to convert tabs to spaces)