Bug#918416: golang-github-microcosm-cc-bluemonday FTBFS with Go 1.11

[Adrian Bunk <bunk@debian.org>]

Source: golang-github-microcosm-cc-bluemonday
Version: 0.0~git20161202.0.e797637-1.1
Severity: serious
Tags: ftbfs

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/golang-github-microcosm-cc-bluemonday.html

...
=== RUN   TestUGCPolicy
--- FAIL: TestUGCPolicy (0.00s)
    policies_test.go:194: test 4 failed;
        input   : <a href="http://example.org/"; rel="nofollow">Hello, <b>World</b></a><a href="https://example.org/#!"; rel="nofollow">!</a>
        output  : <a href="http://example.org/"; rel="nofollow">Hello, <b>World</b></a><a href="https://example.org/#!"; rel="nofollow">!</a>
        expected: <a href="http://example.org/"; rel="nofollow">Hello, <b>World</b></a><a href="https://example.org/#%21"; rel="nofollow">!</a>
    policies_test.go:194: test 5 failed;
        input   : Hello, <b>World</b><a title="!" href="https://example.org/#!"; rel="nofollow">!</a>
        output  : Hello, <b>World</b><a title="!" href="https://example.org/#!"; rel="nofollow">!</a>
        expected: Hello, <b>World</b><a title="!" href="https://example.org/#%21"; rel="nofollow">!</a>
...