Header file moved


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13813 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 582a554..43e8074 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -21,7 +21,7 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetMachineImpls.h"
 #include "llvm/Support/PassNameParser.h"
-#include "Support/Signals.h"
+#include "llvm/System/Signals.h"
 #include "Support/SystemUtils.h"
 #include <fstream>
 #include <memory>