Fix non standards conforming prototypes. (#2150)

These now generate warnings with GCC 13

cluster_library.c

@@ -359,7 +359,7 @@ static void cluster_dist_free_ht(zval *p) {
 }
 
 /* Spin up a HashTable that will contain distribution lists */
-HashTable *cluster_dist_create() {
+HashTable *cluster_dist_create(void) {
     HashTable *ret;
 
     ALLOC_HASHTABLE(ret);
@@ -375,7 +375,7 @@ void cluster_dist_free(HashTable *ht) {
 }
 
 /* Create a clusterDistList object */
-static clusterDistList *cluster_dl_create() {
+static clusterDistList *cluster_dl_create(void) {
     clusterDistList *dl;
 
     dl        = emalloc(sizeof(clusterDistList));

cluster_library.h

@@ -336,7 +336,7 @@ clusterReply *cluster_read_sock_resp(RedisSock *redis_sock,
 void cluster_free_reply(clusterReply *reply, int free_data);
 
 /* Cluster distribution helpers for WATCH */
-HashTable *cluster_dist_create();
+HashTable *cluster_dist_create(void);
 void cluster_dist_free(HashTable *ht);
 int cluster_dist_add_key(redisCluster *c, HashTable *ht, char *key,
     size_t key_len, clusterKeyVal **kv);
@@ -354,7 +354,7 @@ unsigned short cluster_hash_key_zval(zval *key);
 unsigned short cluster_hash_key(const char *key, int len);
 
 /* Validate and sanitize cluster construction args */
-zend_string** cluster_validate_args(double timeout, double read_timeout, 
+zend_string** cluster_validate_args(double timeout, double read_timeout,
     HashTable *seeds, uint32_t *nseeds, char **errstr);
 
 void free_seed_array(zend_string **seeds, uint32_t nseeds);

redis_session.c

@@ -129,7 +129,7 @@ redis_pool_free(redis_pool *pool) {
 }
 
 /* Retreive session.gc_maxlifetime from php.ini protecting against an integer overflow */
-static int session_gc_maxlifetime() {
+static int session_gc_maxlifetime(void) {
     zend_long value = INI_INT("session.gc_maxlifetime");
     if (value > INT_MAX) {
         php_error_docref(NULL, E_NOTICE, "session.gc_maxlifetime overflows INT_MAX, truncating.");