Improve levenshtein() docs.

Tom Lane <tgl@sss.pgh.pa.us>

Commit: 80aa219146c090d46b599ac40d8d63e30532b622
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2016-01-22T17:29:07Z
Releases: 9.6.0
Improve levenshtein() docs.

Fix chars-vs-bytes confusion here too.  Improve poor grammar and
markup.

Files

PathChange+/−
doc/src/sgml/fuzzystrmatch.sgml modified +11 −6

Documentation touched