Doc: clarify wording about tool requirements in sourcerepo.sgml.

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

Commit: 4d93184ab3221f3b012bbe1b36b721d2b62f2526
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2017-07-10T04:08:47Z
Releases: 9.4.13
Doc: clarify wording about tool requirements in sourcerepo.sgml.

Original wording had confusingly vague antecedent for "they", so replace
that with a more repetitive but clearer formulation.  In passing, make the
link to the installation requirements section more specific.  Per gripe
from Martin Mai, though this is not the fix he initially proposed.

Discussion: https://postgr.es/m/CAN_NWRu-cWuNaiXUjV3m4H-riWURuPW=j21bSaLADs6rjjzXgQ@mail.gmail.com

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doc/src/sgml/sourcerepo.sgml modified +3 −3

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