pgAgent commit: 1. Connection object was being accessed,which was alre

1. Connection object was being accessed, which was already released.

2. Changed the logic for checking the connection object existence.

We're using "if (!ms_primaryCon)", which should convert the logic as boolean operator explicitly, which we defined for
the'DBconn' class. 

I suspect some compilers (specifically windows one) may not behave that way, and instead of using the boolean operator,
itchecks for the pointer is NULL or not. 

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgagent.git;a=commitdiff;h=1c583df4bbf0a3f15a5f919096057cca70da1237
Author: Ashesh Vashi <ashesh.vashi@enterprisedb.com>

Modified Files
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connection.cpp | 2 +-
pgAgent.cpp    | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)