Jonas Dreßler 8b15519160 st/icon: Check icon name for empty string in setter function
Don't try to create a GIcon if the given icon name is empty, it will
lead to failure when loading the icon anyway, instead set the gicon to
NULL just as we do in the `set_gicon()` API when unsetting an icon.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/888
2020-01-13 14:44:08 +01:00
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