suppose they were legal before, but lint was unhappy about them. It
was probably unhappy for the wrong reasons, but I think it certainly
wasn't something one would want anyway. Declaring a string of length
three to have storage of length three without room for the nul is
asking for trouble even if it does work in context, and there was no
reason not to state how many days there are in a week or months in a
year -- they aren't onerous and aren't going to change.
NOTE: If this code isn't being synced with the central TZCODE stuff,
it probably should be KNFed etc. It is full of K&R declarations,
register, lots of eccentricities, etc.
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