[except.ctor] Replace the uses of "local variable"

... with "variable with automatic storage duration"

Author: frederick-vs-ja

source/exceptions.tex

@@ -396,7 +396,7 @@
 constructed, but not yet destroyed,
 since the try block was entered.
 If an exception is thrown during the destruction of temporaries or
-local variables for a \keyword{return} statement\iref{stmt.return},
+variables for a \keyword{return} statement\iref{stmt.return},
 the destructor for the returned object (if any) is also invoked.
 The objects are destroyed in the reverse order of the completion
 of their construction.
@@ -418,11 +418,11 @@
 }
 \end{codeblock}
 At \#1, the returned object of type \tcode{A} is constructed.
-Then, the local variable \tcode{b} is destroyed\iref{stmt.jump}.
-Next, the local variable \tcode{y} is destroyed,
+Then, the variable \tcode{b} is destroyed\iref{stmt.jump}.
+Next, the variable \tcode{y} is destroyed,
 causing stack unwinding,
 resulting in the destruction of the returned object,
-followed by the destruction of the local variable \tcode{a}.
+followed by the destruction of the variable \tcode{a}.
 Finally, the returned object is constructed again at \#2.
 \end{example}