Ref ticket #794 awk overflow

[KD4Z]

refactored brute for file concatenation to avoid 64K overflow in awk when executing combine.awk in stripped.csv target of the DB make.

[sijskes]

please review awk logic before replacing with cat.

possible fix for original problem would be to change $1 into string. in combine.awk

[KD4Z]

@sijskes Simon, I saw your first comment regarding the de-duping, and added pipe with !seen[] before I saw your second comment regarding combine.awk. I've updated the PR with !seen[] approach which works well in in my own post-build processing of the contact data. For your review.

[sijskes]

What you have done, is basically added a cat step. Better fix the combine.awk instead. The '!seen' fix u used suffers from the same problem as combine.awk (same functionality, same logic). The fix is converting the implicit integer into a string. This could be applied to combine.awk. Something like "x"$1 or ""$1 will convert to string. The $^ you have removed, is also a proper Makefile construct.