Bug Report

• This is a bug report and I have read the contribution guidelines.

Description

There is a new version of pynsist.

• new version 2.2 breaks the installer build,
• old version 2.1 works.

might be a bug of pynsist

https://github.com/takluyver/pynsist
https://pypi.org/project/pynsist/#history

Reproduction steps / Explicit stream URLs to test

1. ./script/makeinstaller.sh

looks like File /r "streamlinkrc" is the issue

http://nsis.sourceforge.net/Docs/Chapter4.html#file

Log output

~~~ Running makensis ~~~
Processing config: /etc/nsisconf.nsh
Processing script file: "nsis/installer.nsi" (UTF8)
File: "streamlinkrc" -> no files found.
Usage: File [/nonfatal] [/a] ([/r] [/x filespec [...]] filespec [...] |
   /oname=outfile one_file_only)
Error in script "nsis/installer.nsi" on line 174 -- aborting creation process

https://travis-ci.org/streamlink/streamlink/jobs/437722955#L2917-L2921