document constant args

Author: bd1976bris

llvm/lib/LTO/LTO.cpp

@@ -2279,7 +2279,7 @@ class OutOfProcessThinBackend : public CGThinBackend {
     };
 
     assert(ModuleToDefinedGVSummaries.count(ModulePath));
-    
+
     // The BackendThreadPool is only used here to write the sharded index files
     // (similar to WriteIndexesThinBackend).
     BackendThreadPool.async(
@@ -2472,7 +2472,8 @@ class OutOfProcessThinBackend : public CGThinBackend {
       // Load the native object from a file into a memory buffer
       // and store its contents in the output buffer.
       auto ObjFileMbOrErr =
-          MemoryBuffer::getFile(Job.NativeObjectPath, false, false);
+          MemoryBuffer::getFile(Job.NativeObjectPath, /*IsText=*/false,
+                                /*RequiresNullTerminator=*/false);
       if (std::error_code ec = ObjFileMbOrErr.getError())
         return make_error<StringError>(
             BCError + "cannot open native object file: " +