[mem.res.private] Say *this instead of improper this

Author: frederick-vs-ja

source/memory.tex

@@ -5735,10 +5735,10 @@
 \begin{itemdescr}
 \pnum
 \returns
-A derived class shall implement this function to return \tcode{true} if memory allocated from \keyword{this} can be deallocated from \tcode{other} and vice-versa,
+A derived class shall implement this function to return \tcode{true} if memory allocated from \tcode{*this} can be deallocated from \tcode{other} and vice-versa,
 otherwise \tcode{false}.
 \begin{note}
-It is possible that the most-derived type of \tcode{other} does not match the type of \keyword{this}.
+It is possible that the most-derived type of \tcode{other} does not match the type of \tcode{*this}.
 For a derived class \tcode{D}, an implementation of this function
 can immediately return \tcode{false}
 if \tcode{dynamic_cast<const D*>(\&other) == nullptr}.