Ping interval depends on the system's locale

[Governa]

iputils-ping:
  Installato: 3:20190709-3
  Candidato: 3:20190709-3
  Tabella versione:
 *** 3:20190709-3 500
        500 http://br.archive.ubuntu.com/ubuntu focal/main amd64 Packages
        100 /var/lib/dpkg/status

lsb_release -rd:
Description: Ubuntu 20.04.1 LTS
Release: 20.04

ping is using the current locale to interpret the interval value:

    ping -i 0.3 localhost

fails with "ping: bad timing interval: 0.3"
while this works:

    ping -i 0,3 localhost

This also works:
    LANG=en ping localhost -i .3

It seems similar to a 2015 bug from Fedora:
https://bugzilla.redhat.com/show_bug.cgi?id=1283277

[Sebastien Bacher (seb128)]

Thank you for your bug report, the issue was reported upstream in https://github.com/iputils/iputils/issues/273 and fixed in newer version

If you need a fix for the bug in previous versions of Ubuntu, please perform as much as possible of the SRU Procedure [1] to bring the need to a developer's attention.

[1]: https://wiki.ubuntu.com/StableReleaseUpdates#Procedure