8199530: Upgrade to harfbuzz 1.7.6
Reviewed-by: srl, serb
## DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.## This code is free software; you can redistribute it and/or modify it# under the terms of the GNU General Public License version 2 only, as# published by the Free Software Foundation. Oracle designates this# particular file as subject to the "Classpath" exception as provided# by Oracle in the LICENSE file that accompanied this code.## This code is distributed in the hope that it will be useful, but WITHOUT# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License# version 2 for more details (a copy is included in the LICENSE file that# accompanied this code).## You should have received a copy of the GNU General Public License version# 2 along with this work; if not, write to the Free Software Foundation,# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.## Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA# or visit www.oracle.com if you need additional information or have any# questions.## Allowance for leap seconds added to each time zone file.# This file is in the public domain.# This file is generated automatically from the data in the public-domain# leap-seconds.list file, which is copied from:# ftp://ftp.nist.gov/pub/time/leap-seconds.list# For more about leap-seconds.list, please see# The NTP Timescale and Leap Seconds# https://www.eecis.udel.edu/~mills/leap.html# The International Earth Rotation and Reference Systems Service# periodically uses leap seconds to keep UTC to within 0.9 s of UT1# (which measures the true angular orientation of the earth in space); see# Levine J. Coordinated Universal Time and the leap second.# URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995# http://ieeexplore.ieee.org/document/7909995/# There were no leap seconds before 1972, because the official mechanism# accounting for the discrepancy between atomic time and the earth's rotation# did not exist until the early 1970s.# The correction (+ or -) is made at the given time, so lines# will typically look like:# Leap YEAR MON DAY 23:59:60 + R/S# or# Leap YEAR MON DAY 23:59:59 - R/S# If the leapsecond is Rolling (R) the given time is local time.# If the leapsecond is Stationary (S) the given time is UTC.# Leap YEAR MONTH DAY HH:MM:SS CORR R/SLeap 1972 Jun 30 23:59:60 + SLeap 1972 Dec 31 23:59:60 + SLeap 1973 Dec 31 23:59:60 + SLeap 1974 Dec 31 23:59:60 + SLeap 1975 Dec 31 23:59:60 + SLeap 1976 Dec 31 23:59:60 + SLeap 1977 Dec 31 23:59:60 + SLeap 1978 Dec 31 23:59:60 + SLeap 1979 Dec 31 23:59:60 + SLeap 1981 Jun 30 23:59:60 + SLeap 1982 Jun 30 23:59:60 + SLeap 1983 Jun 30 23:59:60 + SLeap 1985 Jun 30 23:59:60 + SLeap 1987 Dec 31 23:59:60 + SLeap 1989 Dec 31 23:59:60 + SLeap 1990 Dec 31 23:59:60 + SLeap 1992 Jun 30 23:59:60 + SLeap 1993 Jun 30 23:59:60 + SLeap 1994 Jun 30 23:59:60 + SLeap 1995 Dec 31 23:59:60 + SLeap 1997 Jun 30 23:59:60 + SLeap 1998 Dec 31 23:59:60 + SLeap 2005 Dec 31 23:59:60 + SLeap 2008 Dec 31 23:59:60 + SLeap 2012 Jun 30 23:59:60 + SLeap 2015 Jun 30 23:59:60 + SLeap 2016 Dec 31 23:59:60 + S# Updated through IERS Bulletin C55# File expires on: 28 December 2018