Fix some typos.

common/locale/en-US/options.xml

@@ -725,7 +725,7 @@
     <type>number</type>
     <default>0</default>
     <description>
-        <p>Changes how soon matching hints are followed in in Hints mode.</p>
+        <p>Changes how soon matching hints are followed in Hints mode.</p>
 
         <p>Possible values:</p>
 

common/locale/en-US/various.xml

@@ -38,7 +38,7 @@
         <p>Fake key events.</p>
 
         <dl>
-            <dt>-mode</dt> <dd>The in which to feed the keys (short name: <em>-m</em>)</dd>
+            <dt>-mode</dt> <dd>The mode in which to feed the keys (short name: <em>-m</em>)</dd>
         </dl>
     </description>
 </item>