[cli] Fix typo in help text

[ricab]

Add a missing opening parenthesis in help text for start.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.88%. Comparing base (c9f3ace) to head (561cd25). Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3648   +/-   ##
=======================================
  Coverage   88.88%   88.88%           
=======================================
  Files         254      254           
  Lines       14250    14250           
=======================================
  Hits        12666    12666           
  Misses       1584     1584           

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