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"ruby-nio4r" versions published in Ubuntu

Mantic (2.5.8-3): main/misc
Lunar (2.5.8-2build2): main/misc
Jammy (2.5.8-2): universe/misc
Focal (2.3.1-1build1): universe/misc
Bionic (1.2.1-1build2): universe/misc
Xenial (1.1.0-1build4): universe/misc