In levenshtein_internal(), describe algorithm a bit more clearly.

Robert Haas <rhaas@postgresql.org>

Commit: 12679b8bc908f941710bed185aa142ad5de539c6
Author: Robert Haas <rhaas@postgresql.org>
Date: 2010-09-24T18:36:39Z
Releases: 9.1.0
In levenshtein_internal(), describe algorithm a bit more clearly.

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contrib/fuzzystrmatch/fuzzystrmatch.c modified +17 −7