Missing spaces in CLI option description.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@13398 71c3de6d-444a-0410-be80-ed276b4c234a

remoting/src/main/java/hudson/remoting/jnlp/Main.java

@@ -24,8 +24,8 @@ import hudson.remoting.EngineListener;
 public class Main {
 
     @Option(name="-tunnel",metaVar="HOST:PORT",
-            usage="Connect to the specified host and port, instead of connecting directly to Hudson." +
-                  "Useful when connection to Hudson needs to be tunneled. Can be also HOST: or :PORT," +
+            usage="Connect to the specified host and port, instead of connecting directly to Hudson. " +
+                  "Useful when connection to Hudson needs to be tunneled. Can be also HOST: or :PORT, " +
                   "in which case the missing portion will be auto-configured like the default behavior")
     public String tunnel;