v2.1.16 fixes missing Docker/containerd information in some situations

[thediveo]

In some situations albeit Edgeshark correctly detected the presence of the Docker (and containerd) container engine, it would not connect to the API endpoint(s). The result was a subtle degradation in that while the network topology was still displayed, yet Docker container and network names were missing. Restarting Edgeshark did not remedy the situation.

This bug is now fixed in v2.1.16, so we ask all Edgeshark users to update even if you weren't affected by this bug in the past.

Ironically, the bug was about multiple whitespace in a particular Linux kernel pseudo file in right-aligned text columns.