Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/LinkAllIR.h b/linux-x64/clang/include/llvm/LinkAllIR.h
index 9a9f3d3..4f4af71 100644
--- a/linux-x64/clang/include/llvm/LinkAllIR.h
+++ b/linux-x64/clang/include/llvm/LinkAllIR.h
@@ -44,7 +44,7 @@
       llvm::LLVMContext Context;
       (void)new llvm::Module("", Context);
       (void)new llvm::UnreachableInst(Context);
-      (void)    llvm::createVerifierPass(); 
+      (void)    llvm::createVerifierPass();
     }
   } ForceVMCoreLinking;
 }