Wiktor Sikora ce613f8795 journald: remove span field prefixes; add separate fields for span data (#1968)
## Motivation

Currently, `tracing-journald` prefixes event fields with the number
of parent spans, if present, in order to namespace field values. This
turned out to be unnecessary as journald preserves values for duplicated
field names.

## Solution

This branch removes event field prefixes and emits parent span names
and their field/value pairs as additional key/value pairs.
2022-04-09 10:43:52 -07:00
..