Bug 12357: Following whitespace failures on koha qa test tools.

Bug 12357: Following whitespace failures on koha qa test tools.

TEST PLAN
---------
1) Apply all patches before this.
2) run koha qa test tools
   -- whitespace failures
3) Apply this patch
4) run koha qa test tools
   -- no whitespace failures.

NOTE: More tabs were fixed than required, to also clean up a little indenting.

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Koha-qa tools now happy

Signed-off-by: Jonathan Druart <jonathan.druart@koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>