Leo P. Singer authored Feb 16, 2017 and Adam Mercer committed Feb 18, 2017

Healpy stores sky maps in a special packing to work around IDL's
bintable length limitations. This patch fixes a bug that caused
IDL-compatible sky maps to be read incorrectly.
(cherry picked from commit a253fd1eaab35a1f714f0645e5370bea4e3a0a57)
Original: 64885ae03461669f76ff537caa059519d9f8ec23