Description

SERVER ticket description:

"impersonators" implies a more general set of functionality than is actually provided when mongos runs commands on shard servers as another user. We should reserve that name for future use, and rename the "userImpersonators" field to "runBy" in currentOp.

Change Description:

This changes the name of "userImpersonators" in currentOp to "runBy", to prevent the name from getting repurposed later. The field did not exist before 4.2.

Scope of changes

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Resources (Scope or Design Docs, Invision, etc.)