Fix a couple of Doxygen issues pointed out by -Wdocumentation.

llvm-svn: 163722
diff --git a/clang/lib/Sema/SemaPseudoObject.cpp b/clang/lib/Sema/SemaPseudoObject.cpp
index 9ee8633..31496b3 100644
--- a/clang/lib/Sema/SemaPseudoObject.cpp
+++ b/clang/lib/Sema/SemaPseudoObject.cpp
@@ -205,7 +205,7 @@
                                 bool captureSetValueAsResult) = 0;
   };
 
-  /// A PseudoOpBuilder for Objective-C @properties.
+  /// A PseudoOpBuilder for Objective-C \@properties.
   class ObjCPropertyOpBuilder : public PseudoOpBuilder {
     ObjCPropertyRefExpr *RefExpr;
     ObjCPropertyRefExpr *SyntacticRefExpr;