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/opt/opt.cpp b/llvm/tools/opt/opt.cpp
index b9d3f9d..9ab4314 100644
--- a/llvm/tools/opt/opt.cpp
+++ b/llvm/tools/opt/opt.cpp
@@ -381,7 +381,7 @@
 
     std::string ErrorInfo;
     Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
-                                   sys::fs::F_Binary));
+                                   sys::fs::F_None));
     if (!ErrorInfo.empty()) {
       errs() << ErrorInfo << '\n';
       return 1;
@@ -467,7 +467,7 @@
 
       std::string ErrorInfo;
       Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
-                                     sys::fs::F_Binary));
+                                     sys::fs::F_None));
       if (!ErrorInfo.empty()) {
         errs() << ErrorInfo << '\n';
         return 1;