Next -- should define /var/run to be equivalent to /run

should define /var/run to be equivalent to /run

Bug 1396 - should define /var/run to be equivalent to /run
https://bugs.linuxfoundation.org/show_bug.cgi?id=1396

The FHS 3.0 defines both /run and /var/run, points out that having /var/run be a symbolic link to /run is a valid implementation, mandates access to utmp via /var/run/utmp, and recommends that other than utmp, applications should access files via either /var/run or /run but not both.

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The context for this request is that I am considering whether D-Bus should switch to using /run/dbus/system_bus_socket for its system bus.

3.15. /run : Run-time variable data
https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#runRuntimeVariableData

5.13. /var/run : Run-time variable data
https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varrunRuntimeVariableData