Bug 16620: Translatability: Fix problem with isolated word "please" in auth.tt

Bug 16620: Translatability: Fix problem with isolated word "please" in auth.tt

This patch fixes a translatability problem (syntax in different languages) with a tag-isolated word "please"
in koha-tmpl/intranet-tmpl/prog/en/modules/auth.tt

To test:
- Verify in code that there is no sentence spliting by a-tags (lines 80/84).

Signed-off-by: Srdjan <srdjan@catalyst.net.nz>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>