=item rindex STR,SUBSTR
-Works just like index() except that it returns the position of the LAST
+Works just like index() except that it returns the position of the I<last>
occurrence of SUBSTR in STR. If POSITION is specified, returns the
-last occurrence at or before that position.
+last occurrence beginning at or before that position.
=item rmdir FILENAME
X<rmdir> X<rd> X<directory, remove>
C<say LIST> is simply an abbreviation for C<print LIST, "\n">,
and C<say()> works just like C<print($_, "\n")>.
+That means that a call to say() appends any output record separator
+I<after> the added newline.
+
This keyword is only available when the "say" feature is
enabled: see L<feature>.