Bug 15597: Typo in opac-auth-detail.tt

Patch fix a small type

To test:
- Verify that a double punctuation mark colon (:) is fix it.

Signed-off-by: Briana <brianagreally@gmail.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>

Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>

koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-auth-detail.tt

@@ -46,7 +46,7 @@
                         <h1>[% summary.mainentry %][% IF authtypetext %] ([% authtypetext %])[% END %]</h1>
 
                         <div class="usedin">
-                            <a href="opac-search.pl?type=opac&amp;q=[% authid %]&amp;idx=an,phr">Number of records used in:: [% count %]</a>
+                            <a href="opac-search.pl?type=opac&amp;q=[% authid %]&amp;idx=an,phr">Number of records used in: [% count %]</a>
                         </div>
 
                         <div class="authstanza">