Remove trailing whitespace

[ruzko]

Proposed Changes

There were a few spots in the install.sh script with trailing whitespaces.
This PR removes those.

Types of Changes

bugfix, formatting

Verification

Open master branch and this PR in nano with highlighting of trailing spaces

Testing

Should be unnecessary

Linked Issues

This is so small, I didn't want to create an issue for it.

User-Facing Change

NONE

Further Comments

[brandond]

LGTM. We do still need an issue though, for our QA processes ;)

[ruzko]

Thanks :)
Made a related issue: #9363

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (57482a1) 45.69% compared to head (d905bb5) 26.62%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #9362       +/-   ##
===========================================
- Coverage   45.69%   26.62%   -19.07%     
===========================================
  Files         154      154               
  Lines       16623    16623               
===========================================
- Hits         7596     4426     -3170     
- Misses       7814    11429     +3615     
+ Partials     1213      768      -445     

Flag	Coverage Δ
e2etests	?
inttests	21.21% <ø> (-16.37%)	⬇️
unittests	15.42% <ø> (ø)

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