Log Message: ----------- use xz Modified Files: -------------- mports/graphics/png: Makefile (r1.19 -> r1.20) (http://cvsweb.midnightbsd.org/mports/graphics/png/Makefile?r1=1.19&r2=1.20) distinfo (r1.13 -> r1.14) (http://cvsweb.midnightbsd.org/mports/graphics/png/distinfo?r1=1.13&r2=1.14)