p4raw-id: //depot/perl@31197
The return value C<LVALUE> indicates a reference to an lvalue that is not
a variable. You get this from taking the reference of function calls like
C<pos()> or C<substr()>. C<VSTRING> is returned if the reference points
-to a L<version string|perldata\"Version Strings">.
+to a L<version string|perldata/"Version Strings">.
The result C<Regexp> indicates that the argument is a regular expression
resulting from C<qr//>.