fix bug: lack case

Author: imcvampire

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-truncate-filter",
-  "version": "1.1.3",
+  "version": "1.1.4",
   "description": "A filter for VueJs to truncate string",
   "main": "vue-truncate.js",
   "repository": {

vue-truncate.js

@@ -15,16 +15,19 @@
     Vue.filter('truncate', function (text, length, clamp) {
       clamp = clamp || '...';
       length = length || 30;
+      
+      if (text.length < length) return text;
 
       var tcText = text.slice(0, length - clamp.length);
       var last = tcText.length - 1;
+      
 
       while (last > 0 && tcText[last] !== ' ' && tcText[last] !== clamp[0])
 	last -= 1;
 
       tcText =  tcText.slice(0, last);
 
-      return tcText + (text.length > length ? clamp : '');
+      return tcText + clamp;
     });
   }