Attached is a patch to fix some minor issues:
-misspelling of an error message
-Commit 550b9d26f80f failed to update the Makefile comment to reflect
how the build changed, and also removed the clean target, which we now
have use for since we later got rid of backtracking in the scanner.
Also, while I have the thought in my head, for v13 we should consider
replacing the keyword binary search with the perfect hash technique
added in c64d0cd5ce2 -- it might give a small performance boost to the
scanner.
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John Naylor https://www.2ndQuadrant.com/
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