[pgpool-committers: 9224] pgpool: Fix compile error on systems using musl libc.

[Tatsuo Ishii]

Fix compile error on systems using musl libc.

Patch provided by leimaohui.
https://www.pgpool.net/mantisbt/view.php?id=790

Branch
------
master

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=e83e75874c7d3bf3c24ea8d437cf98d748df51b4

Modified Files
--------------
src/tools/pgproto/read.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)