[dai] Fix regex bug

[vava24680]

Resolves #36

[codecov]

Codecov Report

Merging #37 into master will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master      #37   +/-   ##
=======================================
  Coverage   38.59%   38.59%           
=======================================
  Files           6        6           
  Lines         513      513           
  Branches       72       72           
=======================================
  Hits          198      198           
  Misses        308      308           
  Partials        7        7           

Impacted Files	Coverage Δ
iottalkpy/dai.py	38.19% <100.00%> (ø)

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