[pgpool-committers: 2082] pgpool: Back porting coverity issues fix patch from master branch.

[Muhammad Usama]

Back porting coverity issues fix patch from master branch.

Fix coverity issue:1111380 Logically dead code
Fix coverity issue:1111382 Logically dead code
Fix coverity issue:1111402 Explicit null dereferenced
Fix coverity issue:1111405 Explicit null dereferenced
Fix coverity issue:1111407 Dereference after null check
Fix coverity issue:1111408 Explicit null dereferenced
Fix coverity issue:1111409 Dereference after null check
Fix coverity issue:1111383 Logically dead code
Fix coverity issue:1111492 Structurally dead code
Fix coverity issue:1111417 Nesting level does not match indentation
Fix coverity issue:1111379 Logically dead code
Fix coverity issue:1111406 Explicit null dereferenced
Fix coverity issue:1111396 Explicit null dereferenced
Fix coverity issue:1111397 Explicit null dereferenced

Branch
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V3_1_STABLE

Details
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http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=180efce0d98f8184600f1d102873fb3165d3f84e

Modified Files
--------------
parser/outfuncs.c       |    2 --
pcp/pcp.c               |   16 +++++++++
pcp_child.c             |    4 +--
pool_relcache.c         |   14 +-------
pool_rewrite_outfuncs.c |   84 ++++++++++++++++++++++++++++-------------------
pool_system.c           |    4 +--
6 files changed, 71 insertions(+), 53 deletions(-)