Remove Incorrect Argument Description (#2323)

Author: brianrob

src/PerfView/CommandLineArgs.cs

@@ -283,9 +283,9 @@ private void SetupCommandLine(CommandLineParser parser)
 
             // These apply to start, collect and run
             parser.DefineOptionalQualifier("BufferSize", ref BufferSizeMB, "The size the buffers (in MB) the OS should use to store events waiting to be written to disk."); // TODO remove eventually. 
-            parser.DefineOptionalQualifier("Circular", ref CircularMB, "Do Circular logging with a file size in MB.  Zero means non-circular.");  // TODO remove eventually. 
+            parser.DefineOptionalQualifier("Circular", ref CircularMB, "Do Circular logging with a file size in MB.");
             parser.DefineOptionalQualifier("BufferSizeMB", ref BufferSizeMB, "The size the buffers (in MB) the OS should use to store events waiting to be written to disk.");
-            parser.DefineOptionalQualifier("CircularMB", ref CircularMB, "Do Circular logging with a file size in MB.  Zero means non-circular.");
+            parser.DefineOptionalQualifier("CircularMB", ref CircularMB, "Do Circular logging with a file size in MB.");
             parser.DefineOptionalQualifier("InMemoryCircularBuffer", ref InMemoryCircularBuffer, "Keeps the circular buffer in memory until the session is stopped.");
             parser.DefineOptionalQualifier("StackCompression", ref StackCompression, "Use stack compression (only on Win 8+) to make collected file smaller.");
             parser.DefineOptionalQualifier("LbrSources", ref LastBranchRecordingSources,