auto tst command fix

[calvinp0]

The subprocess command for auto tst would fail for some reactions due… to character issues

[codecov[bot]]

Codecov Report

Merging #641 (5858425) into main (1aeee4e) will increase coverage by 0.00%. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #641   +/-   ##
=======================================
  Coverage   73.14%   73.15%           
=======================================
  Files          99       99           
  Lines       26273    26273           
  Branches     5494     5494           
=======================================
+ Hits        19217    19219    +2     
+ Misses       5693     5692    -1     
+ Partials     1363     1362    -1     

Impacted Files	Coverage Δ
arc/job/adapters/ts/autotst_ts.py	73.83% <100.00%> (ø)

... and 1 file with indirect coverage changes

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