There's a closed pull request on the void-packages repository

dispcalGUI: fix crash, add python-dbus to depedencies
https://github.com/void-linux/void-packages/pull/28095

Description:
![Screenshot_20210122_012051](https://user-images.githubusercontent.com/45872139/105438997-a2233c00-5c96-11eb-982b-c64ebc3a1923.png)

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#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [x] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR

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