Add a delimiter before digest in the SPDX namespace

[mattmoor]

No description provided.

[codecov-commenter]

Codecov Report

Merging #765 (c7e798e) into main (dcae0e7) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #765   +/-   ##
=======================================
  Coverage   51.27%   51.27%           
=======================================
  Files          44       44           
  Lines        3321     3321           
=======================================
  Hits         1703     1703           
  Misses       1401     1401           
  Partials      217      217           

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