Brian King authored Feb 13, 2015 and Aaron Wells committed Feb 13, 2015

Bug 1414628: The "tm_yday" (day of the year) param is not supplied by
strptime by default on BSD systems such as Mac OS X.
It works just as well to use "tm_mday" (day of the month) param instead,
and it also makes more sense!

Change-Id: I1484dcde4dbd8199f578a4eb5a58a9f78de45635