HADOOP-17236. Bump up snakeyaml to 1.26 to mitigate CVE-2017-18640. Contributed by Brahma Reddy Battula.
HADOOP-17236. Bump up snakeyaml to 1.26 to mitigate CVE-2017-18640. Contributed by Brahma Reddy Battula.

Signed-off-by: Wei-Chiu Chuang <69b92d7faa6f3821f81872c17428713be71a6bb0@apache.org>

apache/hadoop,wwjiang007/hadoop,mapr/hadoop-common,apurtell/hadoop,JingchengDu/hadoop,apache/hadoop,mapr/hadoop-common,JingchengDu/hadoop,apurtell/hadoop,wwjiang007/hadoop,apache/hadoop,wwjiang007/hadoop,apache/hadoop,nandakumar131/hadoop,nandakumar131/hadoop,wwjiang007/hadoop,wwjiang007/hadoop,nandakumar131/hadoop,apurtell/hadoop,apurtell/hadoop,nandakumar131/hadoop,mapr/hadoop-common,JingchengDu/hadoop,JingchengDu/hadoop,mapr/hadoop-common,mapr/hadoop-common,apache/hadoop,apache/hadoop,wwjiang007/hadoop,wwjiang007/hadoop,nandakumar131/hadoop,apurtell/hadoop,apurtell/hadoop,mapr/hadoop-common,JingchengDu/hadoop,nandakumar131/hadoop,JingchengDu/hadoop,JingchengDu/hadoop,nandakumar131/hadoop,apache/hadoop,apurtell/hadoop,mapr/hadoop-common