Fix broken string resources.

Change-Id: I80bb7e570108b267ee2de959262b8db97fb4924b
diff --git a/res/values/strings.xml b/res/values/strings.xml
index f06211c..410fbf0 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1038,7 +1038,7 @@
     <!-- Dock settings screen, setting option summary text when check box is selected -->
     <string name="dock_sounds_enable_summary_on">Play sound when inserting or removing phone from dock</string>
     <!-- Sound settings screen, setting option summary text when check box is clear -->
-    <string name="dock_sounds_enable_summary_off">Don't play sound when inserting or removing phone from dock</string>
+    <string name="dock_sounds_enable_summary_off">Don\'t play sound when inserting or removing phone from dock</string>
 
     <!-- Acounts & Sync settings screen setting option name to go into the screen for data sync settings-->
     <string name="sync_settings">Accounts &amp; sync</string>