Add missing "static" marker to internal_ping().

Per testing with a compiler that doesn't like that.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/775464e8450677602833b1d11b919838e7b2b29a

Modified Files
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src/interfaces/libpq/fe-connect.c |    2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

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Next:	From: Tom Lane	Date: 2011-03-07 01:14:20
	Subject: pgsql: Fix a couple more missing "static" markers.
Previous:	From: Simon Riggs	Date: 2011-03-07 00:27:36
	Subject: pgsql: Dynamic array required within pg_stat_replication.