Add availability_zone to the HELLO command history

[rueian]

This PR is for #1487.

[madolson]

Oops, good followup. We should find a way to add some type of failure on the history, since I know we miss this periodically.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.85%. Comparing base (3b52186) to head (62e04cb).
Report is 2 commits behind head on unstable.

Additional details and impacted files

@@             Coverage Diff              @@
##           unstable    #1524      +/-   ##
============================================
- Coverage     70.85%   70.85%   -0.01%     
============================================
  Files           120      120              
  Lines         64917    64956      +39     
============================================
+ Hits          46000    46024      +24     
- Misses        18917    18932      +15     

Files with missing lines	Coverage Δ
src/commands.def	100.00% <ø> (ø)

... and 48 files with indirect coverage changes

[madolson]

@rueian You also need to run make and update the commands.def file.

[rueian]

@rueian You also need to run make and update the commands.def file.

Oh, thanks for reminding me about that! I have updated the commands.def file.

[rueian]

Thank you @enjoy-binbin for the correction!