Revision history for Perl extension String::DiffLine.

0.01  2000-01-28
	- original version; created by h2xs 1.18

0.02  2000-01-31
	- updated docs with identical-string return values

0.03  2016-03-27
	- fix sv_undef -> PL_sv_undef to build in modern perl5's, fix docs
