Fix object file writing in llvm-lto on Windows.

We were writing in text mode.

Patch by Greg Bedwell.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191985 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-lto/llvm-lto.cpp b/tools/llvm-lto/llvm-lto.cpp
index 1d03fa6..bce903f 100644
--- a/tools/llvm-lto/llvm-lto.cpp
+++ b/tools/llvm-lto/llvm-lto.cpp
@@ -136,7 +136,8 @@
       return 1;
     }
 
-    raw_fd_ostream FileStream(OutputFilename.c_str(), ErrorInfo);
+    raw_fd_ostream FileStream(OutputFilename.c_str(), ErrorInfo,
+                              sys::fs::F_Binary);
     if (!ErrorInfo.empty()) {
       errs() << argv[0] << ": error opening the file '" << OutputFilename
              << "': " << ErrorInfo << "\n";