keep terminology consistent

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@9439 71c3de6d-444a-0410-be80-ed276b4c234a

war/resources/help/system-config/master-slave/availability.html

@@ -29,8 +29,8 @@
             Take this slave on-line when in demand and off-line when idle
         </b></dt>
         <dd>
-            In this mode, if Hudson can start the slave without user assistance, it will periodically
-            attempt to start the slave while there are unexecuted jobs which meet the following criteria:
+            In this mode, if Hudson can launch the slave without user assistance, it will periodically
+            attempt to launch the slave while there are unexecuted jobs which meet the following criteria:
             <ul>
                 <li>They have been in the queue for at least the specified startup demand period</li>
                 <li>They can execute on this slave</li>