Fix unclosed string typo

see https://groups.google.com/forum/#!topic/web2py/DykU5wPQ614

applications/admin/views/debug/interact.html

@@ -63,7 +63,7 @@
               <h3 class="not_paused">{{=T("No Interaction yet")}}</h3>
                 <div class="help span7 alert alert-block alert-info">
                   <ul class="unstyled">
-                    <li>{{=T.M("You need to set up and reach a [[breakpoint %s]] to use the debugger!') %URL('breakpoints')}}</li>
+                    <li>{{=T.M('You need to set up and reach a [[breakpoint %s]] to use the debugger!') % URL('breakpoints')}}</li>
                     <li>{{=T('To emulate a breakpoint programatically, write:')}}
                     {{=CODE("from gluon.debug import dbg\n"
                             "dbg.set_trace() # stop here!\n",