Removing 'all' from the help wording for host-whitelist (as that no longer an option) (#1303)

Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>

pantheon/src/main/java/tech/pegasys/pantheon/cli/PantheonCommand.java

@@ -397,7 +397,7 @@ public class PantheonCommand implements DefaultCommandValues, Runnable {
       names = {"--host-whitelist"},
       paramLabel = "<hostname>[,<hostname>...]... or * or all",
       description =
-          "Comma separated list of hostnames to whitelist for JSON-RPC access, or * or all to accept any host (default: ${DEFAULT-VALUE})",
+          "Comma separated list of hostnames to whitelist for JSON-RPC access, or * to accept any host (default: ${DEFAULT-VALUE})",
       defaultValue = "localhost,127.0.0.1")
   private final JsonRPCWhitelistHostsProperty hostsWhitelist = new JsonRPCWhitelistHostsProperty();