[2.7] bpo-36502: Update link to UAX GH-44, the Unicode doc on the UCD (GH-15301) - #15808

Sep 9, 2019

[2.7] bpo-36502: Update link to UAX GH-44, the Unicode doc on the UCD (GH-15301)#15808
benjaminp merged 1 commit into
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backport-64c6ac7-2.7

[2.7] bpo-36502: Update link to UAX GH-44, the Unicode doc on the UCD. (GH-15301)