Replace the F_Binary flag with a F_Text one.

After this I will set the default back to F_None. The advantage is that
before this patch forgetting to set F_Binary would corrupt a file on windows.
Forgetting to set F_Text produces one that cannot be read in notepad, which
is a better failure mode :-)

llvm-svn: 202052
diff --git a/llvm/tools/llvm-mc/llvm-mc.cpp b/llvm/tools/llvm-mc/llvm-mc.cpp
index 02e78a2..9c7e76c 100644
--- a/llvm/tools/llvm-mc/llvm-mc.cpp
+++ b/llvm/tools/llvm-mc/llvm-mc.cpp
@@ -211,7 +211,7 @@
 
   std::string Err;
   tool_output_file *Out =
-      new tool_output_file(OutputFilename.c_str(), Err, sys::fs::F_Binary);
+      new tool_output_file(OutputFilename.c_str(), Err, sys::fs::F_None);
   if (!Err.empty()) {
     errs() << Err << '\n';
     delete Out;