Vilmos Nebehaj ffad3388a9
Handle missing routing tables (#865)
The behavior of iproute2 changed in 5.0 as described in #750: now if a
table has not been created, `ip route list table <table>` will produce a
non-zero exit code.

It's not really needed to check tables via `list` anyway, since they
will be created by iproute2 when needed on first use. So relax error
handling for `ip route list table`, and remove it completely when a
table might be missing.

This fixes #750
2020-04-24 00:43:08 +05:30
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