Mark some command line flags as hidden

llvm-svn: 193013
diff --git a/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp b/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp
index 5ac9837..745cdf5 100644
--- a/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp
+++ b/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp
@@ -45,7 +45,7 @@
 } HWMultUseMode;
 
 static cl::opt<HWMultUseMode>
-HWMultMode("msp430-hwmult-mode",
+HWMultMode("msp430-hwmult-mode", cl::Hidden,
            cl::desc("Hardware multiplier use mode"),
            cl::init(HWMultNoIntr),
            cl::values(