Merge pull request #97 from SnaffCon/helptextfix

fix for bug in help text

Author: l0ss

Snaffler/Config.cs

@@ -25,7 +25,7 @@ public static Options Parse(string[] args)
                 options = ParseImpl(args);
                 if (options == null)
                 {
-                    throw new ArgumentException("Unable to correctly parse arguments.");
+                    return null;
                 }
             }
             catch

Snaffler/SnaffleRunner.cs

@@ -54,6 +54,12 @@ public void Run(string[] args)
                 // parse cli opts in
                 Options = Config.Parse(args);
 
+                if (Options == null)
+                {
+                    // bail out because the user was just running help
+                    return;
+                }
+
                 // set up the  TSV output if the flag is set
                 if (Options.LogTSV)
                 {