Minor indentation and readability improvements

[shubham14bajpai]

Signed-off-by: Shubham Bajpai [email protected]

What this PR does / why we need it:
This PR fixes minor indentation issues and removes $ from shell commands for better copy-paste experience :)

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Additional information

Special notes for your reviewer

[sachinkumarsingh092]

lgtm

[codecov-commenter]

Codecov Report

Merging #442 (c9e8a35) into main (b17b4f0) will increase coverage by 1.06%.
The diff coverage is n/a.

❗ Current head c9e8a35 differs from pull request most recent head 2794ace. Consider uploading reports for the commit 2794ace to get more accurate results

@@            Coverage Diff             @@
##             main     #442      +/-   ##
==========================================
+ Coverage   67.19%   68.25%   +1.06%     
==========================================
  Files          22       23       +1     
  Lines        1719     1720       +1     
==========================================
+ Hits         1155     1174      +19     
+ Misses        492      474      -18     
  Partials       72       72              

Impacted Files	Coverage Δ
agent/installer/bundle_downloader.go	68.23% <0.00%> (-1.43%)	⬇️
agent/installer/installer.go	77.57% <0.00%> (-0.54%)	⬇️
agent/installer/registry.go	100.00% <0.00%> (ø)
agent/cloudinit/cloudinit.go	76.66% <0.00%> (ø)
agent/cloudinit/cmd_runner.go	100.00% <0.00%> (ø)
agent/cloudinit/file_writer.go	29.23% <0.00%> (ø)
agent/cloudinit/template_parser.go	50.00% <0.00%> (ø)
agent/reconciler/host_reconciler.go	79.23% <0.00%> (ø)
agent/installer/internal/algo/apt_step.go	100.00% <0.00%> (ø)
agent/installer/internal/algo/installer.go	86.15% <0.00%> (ø)
... and 9 more