Configure logrus to include nano seconds in log messages (#1273)
Configure logrus to include nano seconds in log messages (#1273)

Currently the default time format, time.RFC3339, is used, which doesn't include any
subsecond resolution information. This makes it hard to understand the
ordering of log messages when viewing in a log aggregator, like
Kibana.

This change sets the TimestampFormat of the logrus JSONFormatter to
time.RFC3339Nano.
fnproject/fn,fnproject/fn,fnproject/fn