cmd: support human friendly values for options

[SandyXSD]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 78.35052% with 21 lines in your changes are missing coverage. Please review.

Project coverage is 55.73%. Comparing base (a190f55) to head (f0f12e6).
Report is 2 commits behind head on main.

Files	Patch %	Lines
cmd/flags.go	69.44%	10 Missing and 1 partial ⚠️
cmd/objbench.go	80.00%	2 Missing and 1 partial ⚠️
pkg/chunk/cached_store.go	0.00%	2 Missing ⚠️
pkg/chunk/disk_cache.go	50.00%	2 Missing ⚠️
cmd/bench.go	94.11%	0 Missing and 1 partial ⚠️
cmd/format.go	90.90%	1 Missing ⚠️
cmd/quota.go	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4558      +/-   ##
==========================================
+ Coverage   55.66%   55.73%   +0.06%     
==========================================
  Files         157      157              
  Lines       42968    43003      +35     
==========================================
+ Hits        23918    23967      +49     
+ Misses      16393    16376      -17     
- Partials     2657     2660       +3     

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