[DRE-maint] Bug#877546: asciidoctor: privacy breach, no way to turn off online resource linking

[Eduard Bloch]

Package: asciidoctor
Version: 1.5.5-1
Severity: normal

Dear Maintainer,

recently lintian started complaining:

W: icewm-common: privacy-breach-generic usr/share/doc/icewm-common/html/icesound.1.html (https://fonts.googleapis.com/css?family=open+sans:300,300italic,400,400italic,600,600italic%7cnoto+serif:400,400italic,700,700italic%7cdroid+sans+mono:400,700)
W: icewm-common: privacy-breach-generic usr/share/doc/icewm-common/html/icewm.1.html (https://fonts.googleapis.com/css?family=open+sans:300,300italic,400,400italic,600,600italic%7cnoto+serif:400,400italic,700,700italic%7cdroid+sans+mono:400,700)
W: icewm-common: privacy-breach-generic usr/share/doc/icewm-common/html/icewm.html (https://fonts.googleapis.com/css?family=open+sans:300,300italic,400,400italic,600,600italic%7cnoto+serif:400,400italic,700,700italic%7cdroid+sans+mono:400,700)
W: icewm-common: privacy-breach-generic usr/share/doc/icewm-common/html/icewmbg.1.html (https://fonts.googleapis.com/css?family=open+sans:300,300italic,400,400italic,600,600italic%7cnoto+serif:400,400italic,700,700italic%7cdroid+sans+mono:400,700)

Those documents are built with simple asciidoctor calls. I looked around
for switches to turn off the loading of google's fonts but couldn't find
any.

Please provide a solution.

Regards,
Eduard.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.13.0-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages asciidoctor depends on:
ii  ruby                        1:2.3.3
ii  ruby2.1 [ruby-interpreter]  2.1.5-4
ii  ruby2.2 [ruby-interpreter]  2.2.4-1

asciidoctor recommends no packages.

asciidoctor suggests no packages.

-- no debconf information