grpc-js: Include library version and PID in all trace logs #2599
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This fixes #2594 by removing the
index
tracer and moving the relevant information (the library version) into the common prefix of all trace log messages. That will also help confirm the version in the frequent case when people provide snippets of trace logs that don't include the first log, or don't have theindex
tracer enabled. I also included the PID because sometimes people provide logs with output from multiple processes interspersed, and this will help separate them.