[pgpool-committers: 5589] pgpool: Fix compiler warnings.

[Tatsuo Ishii]

Fix compiler warnings.

To deal with compiler warnings regarding that the return value of
write(2) is ignored, replace it with write_it() which calls write()
and uses the return value from it to print error string when write()
returns error.

Branch
------
V4_0_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=37162de2982ac6126db2f6815f09f81bafa05acd

Modified Files
--------------
src/tools/pgproto/send.c | 30 ++++++++++++++++++++++++------
1 file changed, 24 insertions(+), 6 deletions(-)