436524 - Start / Downloadable [files] references in modules cannot use ":" themselves

+ Updating usage.txt to indicate new use of "|"

jetty-start/src/main/resources/org/eclipse/jetty/start/usage.txt

@@ -98,6 +98,7 @@ Module Management:
                    modules.  This may download a file from the network if the 
                    module provides a URL.
 
+
 Startup / Shutdown Command Line:
 --------------------------------
 
@@ -124,11 +125,6 @@ Properties:
 Advanced Commands:
 ------------------
 
-  --download=<http-uri>:<location>
-                   Advanced usage, If the file does not exist at the given
-                   location, download it from the given http URI.
-                   Note: location is always relative to ${jetty.base}
-
   --lib=<classpath>
                    Add arbitrary classpath entries to the the server classpath.
                    
@@ -139,6 +135,13 @@ Advanced Commands:
                    and ${jetty.home}.  This allows for some complex hierarchies
                    of configuration details.
 
+  --download=<http-uri>|<location>
+                   Advanced usage, If the file does not exist at the given
+                   location, download it from the given http URI.
+                   Notes: location is always relative to ${jetty.base}.
+                          you might need to escape the slash "\|" to use
+                          this on some environments.
+
 
 Properties:
 -----------