Remove the trailing backslash from the comment to remove the warning about
a multi-line comment, fixing builds with e.g. -Werror=comment enabled.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158406 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/MicrosoftMangle.cpp b/lib/AST/MicrosoftMangle.cpp
index 899cc15..4d8d79c 100644
--- a/lib/AST/MicrosoftMangle.cpp
+++ b/lib/AST/MicrosoftMangle.cpp
@@ -1509,7 +1509,7 @@
 }
 void MicrosoftMangleContext::mangleCXXVTable(const CXXRecordDecl *RD,
                                              raw_ostream &Out) {
-  // <mangled-name> ::= ? <operator-name> <class-name> <storage-class> \
+  // <mangled-name> ::= ? <operator-name> <class-name> <storage-class>
   //                      <cvr-qualifiers> [<name>] @
   // <operator-name> ::= _7 # vftable
   //                 ::= _8 # vbtable