Fixed bug writing software counters to the wrong file.

Made the name of output file more generic and fixed the help.

src/main/kotlin/se/lth/cs/commandline/PapiCommandLine.kt

@@ -22,14 +22,14 @@ class PapiCommandLine : CliktCommand() {
             .default("papi_avail")
 
     val outputFileName : String by option("-o", help="The output file for PAPI counter data")
-            .default("hardware-perf-data.csv")
+            .default("output.csv")
 
     val numberRuns : Int by option("--number-runs", "-n",
             help="Number of runs per counter and application")
             .int()
             .default(100)
 
-    val softwareCounters : Boolean by option("-s", "--software-counters")
+    val softwareCounters : Boolean by option("-s", "--software-counters", help="Prints software counters to output file")
             .flag()
 
     fun checkFileExists(file : File) {