Log Message:
gallery-dl: Update to 1.8.2

pkgsrc changes:
 - Configuration files and man pages were accidentally installed
   in etc/ and share/man.  Add a SUBST_SED in order to avoid hard-coded
   paths and install bash completions in share/bash_completions.d.

Changes:
1.8.2
=====
Additions
---------
 - Support for
   - `pixnet` (#177)
   - `wikiart` (#179)
   - `mangoxo` (#184)
   - `yaplog` (#190)
   - `livedoor` (#190)
 - Login support for `mangoxo` (#184) and `twitter` (#214)

Changes
-------
 - Increased required `Requests` version to 2.11.0

Fixes
-----
 - Improved image quality on `reactor` sites (#210)
 - Support `imagebam` galleries with more than 100 images (#219)
 - Updated Cloudflare bypass code