fix [-Wformat=] warning on 32-bit (phpredis#1750)

Use the portable `ZEND_LONG_FORMAT` family instead of C format specifiers

Author: remicollet

cluster_library.c

@@ -552,7 +552,7 @@ unsigned short cluster_hash_key_zval(zval *z_key) {
             klen = Z_STRLEN_P(z_key);
             break;
         case IS_LONG:
-            klen = snprintf(buf,sizeof(buf),"%ld",Z_LVAL_P(z_key));
+            klen = snprintf(buf,sizeof(buf),ZEND_LONG_FMT,Z_LVAL_P(z_key));
             kptr = (const char *)buf;
             break;
         case IS_DOUBLE:

redis_array.c

@@ -926,7 +926,7 @@ PHP_METHOD(RedisArray, mget)
             key_len = Z_STRLEN_P(data);
             key_lookup = Z_STRVAL_P(data);
         } else {
-            key_len = snprintf(kbuf, sizeof(kbuf), "%ld", Z_LVAL_P(data));
+            key_len = snprintf(kbuf, sizeof(kbuf), ZEND_LONG_FMT, Z_LVAL_P(data));
             key_lookup = (char*)kbuf;
         }
 
@@ -1052,7 +1052,7 @@ PHP_METHOD(RedisArray, mset)
             key_len = ZSTR_LEN(zkey);
             key = ZSTR_VAL(zkey);
         } else {
-            key_len = snprintf(kbuf, sizeof(kbuf), "%lu", idx);
+            key_len = snprintf(kbuf, sizeof(kbuf), ZEND_ULONG_FMT, idx);
             key = kbuf;
         }
 

redis_cluster.c

@@ -2245,7 +2245,7 @@ cluster_cmd_get_slot(redisCluster *c, zval *z_arg)
 
         /* Inform the caller if they've passed bad data */
         if (slot < 0) {
-            php_error_docref(0, E_WARNING, "Unknown node %s:%ld",
+            php_error_docref(0, E_WARNING, "Unknown node %s:" ZEND_LONG_FMT,
                 Z_STRVAL_P(z_host), Z_LVAL_P(z_port));
         }
     } else {