When opening `shutter` it adds an indicator icon to the status bar.
However this doesn't happen (and an ugly default icon will be used) if
`shutter` can't find the `hicolor-icon-theme`. In such a case a warning
like this can be found in `stderr`:
```
Gtk-WARNING **: Could not find the icon 'image-png'. The 'hicolor' theme
was not found either, perhaps you need to install it.
```
As I don't think that we should force users to install this theme
globally and several other packages including `tor-browser`, `gparted`
or `clawsmail` add `hicolor-icon-theme` to their closure this seems to
be a fair measure.
Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.
This update was made based on information from https://repology.org/metapackage/abcMIDI/versions.
These checks were done:
- built on NixOS
- ran ‘/nix/store/s7dh3851ix5avzik864jz5abrswrmf8z-abcMIDI-2018.04.24/bin/abc2midi -h’ got 0 exit code
- ran ‘/nix/store/s7dh3851ix5avzik864jz5abrswrmf8z-abcMIDI-2018.04.24/bin/midi2abc -h’ got 0 exit code
- ran ‘/nix/store/s7dh3851ix5avzik864jz5abrswrmf8z-abcMIDI-2018.04.24/bin/midi2abc --help’ got 0 exit code
- ran ‘/nix/store/s7dh3851ix5avzik864jz5abrswrmf8z-abcMIDI-2018.04.24/bin/abc2abc -h’ got 0 exit code
- ran ‘/nix/store/s7dh3851ix5avzik864jz5abrswrmf8z-abcMIDI-2018.04.24/bin/mftext -h’ got 0 exit code
- ran ‘/nix/store/s7dh3851ix5avzik864jz5abrswrmf8z-abcMIDI-2018.04.24/bin/mftext --help’ got 0 exit code
- ran ‘/nix/store/s7dh3851ix5avzik864jz5abrswrmf8z-abcMIDI-2018.04.24/bin/mftext help’ got 0 exit code
- ran ‘/nix/store/s7dh3851ix5avzik864jz5abrswrmf8z-abcMIDI-2018.04.24/bin/yaps -h’ got 0 exit code
- ran ‘/nix/store/s7dh3851ix5avzik864jz5abrswrmf8z-abcMIDI-2018.04.24/bin/abcmatch -h’ got 0 exit code
- directory tree listing: https://gist.github.com/d75d63bae2db4467af91a891a9a1b597
This reverts commit 6c182dd14d.
No reason to drop working code, for which there is no other alternative
(in this case, formatting/checking HFS+ filesystems).
