Fix a use of the C99 PRI format macros not to conflict with C++11 UDLs.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152475 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/VTableBuilder.cpp b/lib/AST/VTableBuilder.cpp
index f819f67..67924eb 100644
--- a/lib/AST/VTableBuilder.cpp
+++ b/lib/AST/VTableBuilder.cpp
@@ -2136,7 +2136,8 @@
       uint64_t VTableIndex = I->first;
       const std::string &MethodName = I->second;
 
-      Out << llvm::format(" %4"PRIu64" | ", VTableIndex) << MethodName << '\n';
+      Out << llvm::format(" %4" PRIu64 " | ", VTableIndex) << MethodName
+          << '\n';
     }
   }