Strip whitespace from regex command input

[abbiemery]

Returns to expected behaviour of regex command interpreter stripping white space.

[codecov[bot]]

Codecov Report

Merging #173 (f1b058f) into master (8a457e5) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #173   +/-   ##
=======================================
  Coverage   95.21%   95.21%           
=======================================
  Files          43       43           
  Lines        1295     1295           
=======================================
  Hits         1233     1233           
  Misses         62       62           

Files Changed	Coverage Δ
...kit/adapters/interpreters/command/regex_command.py	96.15% <100.00%> (ø)