Fix the problem addressed by patch
[ 819012 ] Fix for former/latter confusion in Extending documentation
although not by using supplied patch.
diff --git a/Doc/ext/extending.tex b/Doc/ext/extending.tex
index bfd6b04..95e4546 100644
--- a/Doc/ext/extending.tex
+++ b/Doc/ext/extending.tex
@@ -819,7 +819,7 @@
this is done using the functions \cfunction{malloc()} and
\cfunction{free()}. In \Cpp, the operators \keyword{new} and
\keyword{delete} are used with essentially the same meaning and
-we'll restrict the following discussion to the latter.
+we'll restrict the following discussion to the C case.
Every block of memory allocated with \cfunction{malloc()} should
eventually be returned to the pool of available memory by exactly one