PHP 5.4 doesn't link to this package

[jcftang]

This is required to link against php 5.4.x

diff --git a/slurm_php.c b/slurm_php.c
index face859..8fd71e2 100644
--- a/slurm_php.c
+++ b/slurm_php.c
@@ -47,7 +47,7 @@

 #include "slurm_php.h"

-static function_entry slurm_functions[] = {
+static zend_function_entry slurm_functions[] = {
        PHP_FE(slurm_ping, NULL)
        PHP_FE(slurm_slurmd_status, NULL)
        PHP_FE(slurm_print_partition_names, NULL)