pgsql: Properly send SCM status updates when shutting down service on W

Properly send SCM status updates when shutting down service on Windows

The Service Control Manager should be notified regularly during a shutdown
that takes a long time. Previously we would increaes the counter, but forgot
to actually send the notification to the system. The loop counter was also
incorrectly initalized in the event that the startup of the system took long
enough for it to increase, which could cause the shutdown process not to wait
as long as expected.

Krystian Bigaj, reviewed by Michael Paquier

Branch
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REL9_4_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/43ed06816f8d9c591ca767a19d555044648cb8a2

Modified Files
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src/bin/pg_ctl/pg_ctl.c | 28 ++++++++++++++++++++--------
1 file changed, 20 insertions(+), 8 deletions(-)