Signed-off-by: David Golden <dagolden@cpan.org>
is a positive (unsigned) decimal number of any length is an absolute reference
to a capturing group.
-I<N> refers to the Nth set of parentheses - so C<\gI<N>> refers to whatever has
-been matched by that set of parenthesis. Thus C<\g1> refers to the first
+I<N> refers to the Nth set of parentheses, so C<\gI<N>> refers to whatever has
+been matched by that set of parentheses. Thus C<\g1> refers to the first
capture group in the regex.
The C<\gI<N>> form can be equivalently written as C<\g{I<N>}>