[libpng16] Update ftp site mentioned in README
diff --git a/README b/README
index e8437c4..ce1da01 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.6.30beta03 - April 22, 2017 (shared library 16.0)
+README for libpng version 1.6.30beta03 - May 16, 2017 (shared library 16.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
@@ -91,8 +91,8 @@
 these at http://www.libpng.org/pub/png/documents/
 
 This code is currently being archived at libpng.sourceforge.io in the
-[DOWNLOAD] area, and at ftp://ftp.simplesystems.org.  If you can't find it
-in any of those places, e-mail me, and I'll help you find it.
+[DOWNLOAD] area, and at ftp://ftp-osl.osuosl.org/pub/libpng/src .  If you
+can't find it in any of those places, e-mail me, and I'll help you find it.
 
 I am not a lawyer, but I believe that the Export Control Classification
 Number (ECCN) for libpng is EAR99, which means not subject to export