Fix parameters

Author: blootsvoets

src/main/java/org/radarcns/hdfs/util/commandline/CommandLineArgs.java

@@ -96,7 +96,7 @@ public class CommandLineArgs {
     @Parameter(names = {"--exclude-topic"}, description = "Topic to exclude when processing the records. Can be supplied more than once to exclude multiple topics.")
     public List<String> excludeTopics = new ArrayList<>();
 
-    @Parameter(names = {"-s", "--service"}, description = "Run the output generation as a service")
+    @Parameter(names = {"-S", "--service"}, description = "Run the output generation as a service")
     public boolean asService = false;
 
     @Parameter(names = {"-i", "--interval"}, description = "Polling interval when running as a service (seconds)")