Fix string (#2820)

Corona-Warn-App/src/main/res/values/event_registration_strings.xml

@@ -43,7 +43,7 @@
     <!-- XTXT: My check-ins card: Active event, checkin information, automatic checkout info -->
     <string name="trace_location_checkins_card_automatic_checkout_info">"%1$s - check out automatically after %2$s."</string>
     <!-- XTXT: My check-ins card: Active event, checkin information, automatic checkout info -->
-    <string name="trace_location_checkins_card_automatic_checkout_info_format">"%1$s 2$s - check out automatically after %3$s."</string>
+    <string name="trace_location_checkins_card_automatic_checkout_info_format">"%1$s %2$s - check out automatically after %3$s."</string>
     <!-- XHED: Title of the category list screen of the event creation  -->
     <string name="tracelocation_organizer_category_title">"Create QR Code"</string>