When running a single jstest locally (which is a common case, both during development and triaging of failures), the leading test name is mostly superfluous and just wastes valuable horizontal space — which I would rather have used for the actual log message, especially now that structured logging has made them longer and more likely to wrap in my terminal.

The already-present console_no_timestamps.yml does a similar thing, being identical to console.yml but without %(asctime)s.

Can we add a new console_no_prefix.yml which also omits [%(name)s]? ie. which compared to console.yml is:

--- a/buildscripts/resmokeconfig/loggers/console.yml
+++ b/buildscripts/resmokeconfig/loggers/console_no_prefix.yml
@@ -8,6 +8,6 @@ logging:
     handlers:
       - class: logging.StreamHandler
   tests:
-    format: '[%(name)s] %(asctime)s %(message)s'
+    format: '%(message)s'
     handlers:
       - class: logging.StreamHandler