making itunes owner email optional

[leogdion]

Fixing Issue #40

[codecov]

Codecov Report

Merging #41 (f762a6c) into main (dc3e6b6) will not change coverage.
The diff coverage is n/a.

❗ Current head f762a6c differs from pull request most recent head 53b7d45. Consider uploading reports for the commit 53b7d45 to get more accurate results

@@           Coverage Diff           @@
##             main      #41   +/-   ##
=======================================
  Coverage   80.72%   80.72%           
=======================================
  Files          35       35           
  Lines         742      742           
=======================================
  Hits          599      599           
  Misses        143      143           

Flag	Coverage Δ
5.5.2	75.70% <ø> (ø)
5.6.2	80.61% <ø> (ø)
5.7	80.61% <ø> (ø)
5.7.1	80.61% <ø> (ø)
bionic	80.61% <ø> (ø)
focal	80.61% <ø> (ø)
github	80.61% <ø> (ø)
iOS	80.72% <ø> (ø)
iOS-15.4	80.72% <ø> (ø)
iOS-15.5	80.72% <ø> (ø)
iOS-16.0	80.72% <ø> (?)
iOS-16.1	80.72% <ø> (?)
jammy	80.61% <ø> (ø)
spm	80.72% <ø> (ø)
watchOS	80.72% <ø> (ø)
watchOS8.5	80.72% <ø> (ø)
watchOS9.0	80.72% <ø> (?)
watchOS9.1	80.72% <ø> (?)

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