Fix broken links to the Itanium CXX ABI

llvm-svn: 312986
diff --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index 95be23f..dbda7a5 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -11,7 +11,7 @@
 // which is used in GCC 3.2 and newer (and many compilers that are
 // ABI-compatible with GCC):
 //
-//   http://mentorembedded.github.io/cxx-abi/abi.html#mangling
+//   http://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling
 //
 //===----------------------------------------------------------------------===//
 #include "clang/AST/Mangle.h"