Johannes Schindelin 4fef6321a5 ci: run gem with sudo to install asciidoctor
In a later patch, we will run Documentation job in GitHub Actions.
The job will run without elevated permission.

Run `gem` with `sudo` to elevate permission in order to be able to
install to system location.
This will also keep this installation in-line with other installation in
our Linux system for CI.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
[Danh: reword commit message]
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-10 10:30:40 -07:00
..