feature.pm add __END__, split POD, less IO/CPU parse time

-feature.pm is 29 KB big, don't IO read or parse 22 KB of POD

feature.pm's POD in the middle is from its initial commit

69bcf1d 12/22/2011 1:46:41 AM
Create regen/feature.pl

Author: bulk88

lib/feature.pm

@@ -123,11 +123,10 @@ XXX Remove this section if F<Porting/corelist-perldelta.pl> did not add any cont
 
 =over 4
 
-=item *
-
-L<XXX> has been upgraded from version A.xx to B.yy.
+=item feature.pm
 
-XXX If there was something important to note about this change, include that here.
+L<feature.pm|/feature.pm> has been upgraded from version 1.91 to 1.92.  Split POD and code
+and add C<__END__>.  Avoids I/O and parsing 22KB of POD in C<use feature;>.
 
 =back