Correct the help text for HostdMode -server argument.

git-svn-id: https://google-web-toolkit.googlecode.com/svn/releases/1.6@4866 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/dev/core/src/com/google/gwt/dev/HostedMode.java b/dev/core/src/com/google/gwt/dev/HostedMode.java
index c1053a9..18a3448 100644
--- a/dev/core/src/com/google/gwt/dev/HostedMode.java
+++ b/dev/core/src/com/google/gwt/dev/HostedMode.java
@@ -69,7 +69,7 @@
 
     @Override
     public String getPurpose() {
-      return "Prevents the embedded Tomcat server from running, even if a port is specified";
+      return "Specify a different embedded web server to run (must implement ServletContainerLauncher)";
     }
 
     @Override