pgsql: Improve pg_upgrade wording for pg_ctl start failure; could be

Improve pg_upgrade wording for pg_ctl start failure; could be
connection failure.

Backpatch to 9.2.

Per report from Evan D. Hoffman

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/877b55c61962b480080a818b95dd462d5a7fe68d

Modified Files
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contrib/pg_upgrade/server.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)