removed optional params

src/database/level/sorted.js

@@ -196,15 +196,6 @@ module.exports = function(db, module) {
 	};
 
 	function sortedSetUnion(sets, reverse, start, stop, callback) {
-		if (typeof start === 'function') {
-			callback = start;
-			start = 0;
-			stop = -1;
-		} else if (typeof stop === 'function') {
-			callback = stop;
-			stop = -1;
-		}
-
 		async.map(sets, function(key, next) {
 			module.getListRange(key, 0, -1, next);
 		}, function(err, results) {

src/database/mongo/sorted.js

@@ -177,14 +177,6 @@ module.exports = function(db, module) {
 	};
 
 	function getSortedSetUnion(sets, sort, start, stop, callback) {
-		if (typeof start === 'function') {
-			callback = start;
-			start = 0;
-			stop = -1;
-		} else if (typeof stop === 'function') {
-			callback = stop;
-			stop = -1;
-		}
 		var limit = stop - start + 1;
 		if (limit <= 0) {
 			limit = 0;

src/database/redis/sorted.js

@@ -107,16 +107,6 @@ module.exports = function(redisClient, module) {
 	};
 
 	function sortedSetUnion(sets, reverse, start, stop, callback) {
-		// start and stop optional
-		if (typeof start === 'function') {
-			callback = start;
-			start = 0;
-			stop = -1;
-		} else if (typeof stop === 'function') {
-			callback = stop;
-			stop = -1;
-		}
-
 		var	multi = redisClient.multi();
 
 		// zunionstore prep

tests/database.js

@@ -325,13 +325,13 @@ describe('Test database', function() {
 		}
 
 		function getSortedSetUnion(callback) {
-			db.getSortedSetUnion(['users:joindate', 'users:derp', 'users:postcount'], function(err, data) {
+			db.getSortedSetUnion(['users:joindate', 'users:derp', 'users:postcount'], 0, -1, function(err, data) {
 				callback(err, {'sortedSetUnion': data});
 			});
 		}
 
 		function getSortedSetRevUnion(callback) {
-			db.getSortedSetUnion(['users:joindate', 'users:derp', 'users:postcount'], function(err, data) {
+			db.getSortedSetRevUnion(['users:joindate', 'users:derp', 'users:postcount'], 0, -1, function(err, data) {
 				callback(err, {'sortedSetUnion': data});
 			});
 		}