Updated usage statement for filters

Author: Steve Salas

dotnet-tracer/main/CodePulse.Console/CommandLineParser.cs

@@ -313,10 +313,16 @@ public string Usage()
             builder.AppendLine(string.Format("[-HideSkipped:{0}|All,[{0}|All]]", skips));
             builder.AppendLine();
             builder.AppendLine("Filters:");
-            builder.AppendLine("    Filters are used to include and exclude assemblies and types in the");
-            builder.AppendLine("    profiler coverage; see the Usage guide. If no other filters are supplied");
-            builder.AppendLine("    via the -filter option then a default inclusive all filter +[*]* is");
-            builder.AppendLine("    applied.");
+            builder.AppendLine("    Filters control the scope of the Code Pulse .NET Tracer. A filter ");
+            builder.AppendLine("    string can either include or exclude parts of a .NET Framework ");
+            builder.AppendLine("    application. ");
+            builder.AppendLine("    ");
+            builder.AppendLine("    Inclusion filters begin with + and exclusion filters start with -. ");
+            builder.AppendLine("    The assembly portion follows and consists of an assembly name in ");
+            builder.AppendLine("    brackets. The type filter comes last. Both the assembly name and ");
+            builder.AppendLine("    type filter can include an asterisk as a wildcard character. Wrap ");
+            builder.AppendLine("    two or more filter strings with double quotes and separate them ");
+            builder.AppendLine("    with spaces. ");
             builder.AppendLine("Logging:");
             builder.AppendLine("    Logging is based on log4net logging levels and appenders - defaulting");
             builder.AppendLine("    to INFO log level with ColoredConsoleAppender and RollingFileAppender.");