Fix a documentation typo: \\brief -> \brief


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158507 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/DeclBase.h b/include/clang/AST/DeclBase.h
index d51e2ab..b1f9180 100644
--- a/include/clang/AST/DeclBase.h
+++ b/include/clang/AST/DeclBase.h
@@ -1142,7 +1142,7 @@
   /// inline, its enclosing namespace, recursively.
   bool InEnclosingNamespaceSetOf(const DeclContext *NS) const;
 
-  /// \\brief Collects all of the declaration contexts that are semantically
+  /// \brief Collects all of the declaration contexts that are semantically
   /// connected to this declaration context.
   ///
   /// For declaration contexts that have multiple semantically connected but