Hide extra argument

llvm-svn: 2986
diff --git a/llvm/lib/Transforms/Instrumentation/TraceValues.cpp b/llvm/lib/Transforms/Instrumentation/TraceValues.cpp
index 3d5ff45..3e0cb4b 100644
--- a/llvm/lib/Transforms/Instrumentation/TraceValues.cpp
+++ b/llvm/lib/Transforms/Instrumentation/TraceValues.cpp
@@ -28,7 +28,7 @@
 
 static cl::list<string>
 TraceFuncName("tracefunc", cl::desc("trace only specific functions"),
-              cl::value_desc("function"));
+              cl::value_desc("function"), cl::Hidden);
 
 
 // We trace a particular function if no functions to trace were specified