--- old/make/data/tzdata/northamerica	2018-10-26 09:16:31.838531663 -0400
+++ new/make/data/tzdata/northamerica	2018-10-26 09:16:31.638531663 -0400
@@ -21,6 +21,8 @@
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
+# tzdb data for North and Central America and environs
+
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
@@ -71,7 +73,7 @@
 #
 # Most of the US soon followed suit.  See:
 # Bartky IR. The adoption of standard time. Technol Cult 1989 Jan;30(1):25-56.
-# http://dx.doi.org/10.2307/3105430
+# https://dx.doi.org/10.2307/3105430
 
 # From Paul Eggert (2005-04-16):
 # That 1883 transition occurred at 12:00 new time, not at 12:00 old time.