[NFC] Fix typo in dropdown menu

Author: ldionne

lnt/server/ui/templates/submit_run.html

@@ -17,7 +17,7 @@
 <p><b>Machine Selection / Creation:</b><br/>
 <select name="select_machine">
 <option selected="selected" value="match">match: Abort if machine information doesn't match</option>
-<option value="update">update: Update matchine if information doesn't match</option>
+<option value="update">update: Update machine if information doesn't match</option>
 <option value="split">split: Create additional machine with same name if information doesn't match</option>
 </select><br/>