Correct the command args at stage 2 instructions

[MOZGIII]

No description provided.

[codecov-io]

Codecov Report

Merging #261 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #261   +/-   ##
=======================================
  Coverage   70.19%   70.19%           
=======================================
  Files          20       20           
  Lines         718      718           
=======================================
  Hits          504      504           
  Misses        149      149           
  Partials       65       65           

Impacted Files	Coverage Δ
pkg/usecases/setup/stage2.go	67.92% <ø> (ø)

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[int128]

Thank you for your contribution.

[MOZGIII]

@int128 thanks for adopting my patch! There might be other occurrences of the same issue across the code base, and frankly, the way I fixed it is not the best one.
A better way would be to add a template helper function that would wrap the array of string with adding the \ for each except the last one.