fixup! Normalize limit similar to levelup

abstract-leveldown.js

@@ -400,7 +400,7 @@ AbstractLevelDOWN.prototype.clear = function (options, callback) {
 
   options = cleanRangeOptions(this, options)
   options.reverse = !!options.reverse
-  options.limit = 'limit' in options ? options.limit : -1
+  options.limit = typeof options.limit === 'number' && options.limit !== Infinity ? options.limit : -1
 
   this._clear(options, (err) => {
     if (err) return callback(err)