The functions in Signal.h are now in the llvm::sys namespace - adjust


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16091 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-extract/llvm-extract.cpp b/tools/llvm-extract/llvm-extract.cpp
index 7f19d8f..050793b 100644
--- a/tools/llvm-extract/llvm-extract.cpp
+++ b/tools/llvm-extract/llvm-extract.cpp
@@ -46,7 +46,7 @@
 
 int main(int argc, char **argv) {
   cl::ParseCommandLineOptions(argc, argv, " llvm extractor\n");
-  PrintStackTraceOnErrorSignal();
+  sys::PrintStackTraceOnErrorSignal();
 
   std::auto_ptr<Module> M(ParseBytecodeFile(InputFilename));
   if (M.get() == 0) {