Fix and improve read command

[mfussenegger]

No description provided.

[coveralls]

Coverage decreased (-0.7%) to 83.131% when pulling cf824da on j/read-command into 1ae1c7b on master.

[coveralls]

Coverage decreased (-0.7%) to 83.131% when pulling cf824da on j/read-command into 1ae1c7b on master.

[coveralls]

Coverage decreased (-0.7%) to 83.131% when pulling cf824da on j/read-command into 1ae1c7b on master.

[coveralls]

Coverage decreased (-0.7%) to 83.131% when pulling cf824da on j/read-command into 1ae1c7b on master.

[coveralls]

Coverage decreased (-0.7%) to 83.131% when pulling cf824da on j/read-command into 1ae1c7b on master.

[coveralls]

Coverage increased (+0.1%) to 84.02% when pulling cc47be8 on j/read-command into 1ae1c7b on master.

[coveralls]

Coverage increased (+0.1%) to 84.02% when pulling cc47be8 on j/read-command into 1ae1c7b on master.

[codecov-io]

Codecov Report

Merging #236 into master will increase coverage by 0.14%.
The diff coverage is 94.87%.

@@            Coverage Diff             @@
##           master     #236      +/-   ##
==========================================
+ Coverage   83.87%   84.01%   +0.14%     
==========================================
  Files          19       19              
  Lines        2208     2234      +26     
==========================================
+ Hits         1852     1877      +25     
- Misses        356      357       +1

Impacted Files	Coverage Δ
src/crate/crash/test_commands.py	100% <100%> (ø)	⬆️
src/crate/crash/commands.py	90.17% <88.23%> (+0.07%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1ae1c7b...2c7d750. Read the comment docs.

[chaudum]

looks good.
it's up to you whether you want to add a changelog entry. it's not necessary, but you could also "sell" it as an improvement

[coveralls]

Coverage increased (+0.1%) to 84.02% when pulling 2c7d750 on j/read-command into 1ae1c7b on master.