Fixed translation string

pages/index/19.php

@@ -46,7 +46,7 @@
     </td>
     <td class="DataTD">
       <u><?=_("Benefits")?>:</u> <?=_("Digitally sign code, web applets, installers, etc. including your name and location in the certificates.")?><br><br>
-      <u><?=_("Limitations")?>:</u> <?=sprintf(_("Certificates expire in 12 months. Certificates %smust%s include your full name."),"<u>","</u>")?><br /><br />
+      <u><?=_("Limitations")?>:</u> <?=sprintf(_("Certificates expire in 12 months. Certificates %s must%s include your full name."),"<u>","</u>")?><br /><br />
       <u><?=_("Verification needed")?>:</u> <?=_("Same as above plus get 100 assurance points by meeting with multiple assurers from the CAcert Web of Trust, who verify your identity using your government issued photo identity documents.")?><br><br>
     </td>
   </tr>