Fix #164: Add Utmpx::is_active()
as a workaround on BSD
#165
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This pull request adds an
is_active
method tocoreutils_core::os::utmpx::Utmpx
that checks if the line (device name) exists on the system to work around a quirk of BSD systems discussed in #164.I have also taken the liberty of bumping the version of the coreutils_core crate from 0.1.1 to 0.1.2.
Should any other change be needed, I will be happy to modify my pull request.