[stmt.dcl] Mirror changes from CWG2791

Author: eisenwave

source/statements.tex

@@ -1075,7 +1075,8 @@
 \end{footnote}
 When a \grammarterm{declaration-statement} is executed,
 $P$ and $Q$ are the points immediately before and after it;
-when a function returns, $Q$ is after its body.
+when a function returns control to the caller,
+$Q$ is after its body.
 \begin{example}
 \begin{codeblock}
 void f() {