Fixed various issues with log formatting: * Only do special formatted output if both the service and method fields are set * Fixed a bug where fields were sometimes not printed * Removed frivolous type coercion of field json
Fixed various issues with log formatting:
* Only do special formatted output if both the service and method fields are set
* Fixed a bug where fields were sometimes not printed
* Removed frivolous type coercion of field json

pachyderm/pfs,pachyderm/pfs,pachyderm/pfs