Merged to the "master" branch as
e90bd12f49e08f4d30007e80eaf5649ef98b5517

In addition, I fixed the license: the project uses GPLv3+, as mentioned
by ngz on #guix IRC channel on irc.libera.chat.

Also just found out that there's a duplicate bugreport 73757 by Aaron
Covrig, that adds cutecom v0.51.0:
  https://debbugs.gnu.org/cgi/bugreport.cgi?bug=73757

- avp

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Artyom "avp" Poptsov <poptsov.artyom@gmail.com>
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