fix extendPrototype method

Author: az7arul

dist/string.js

@@ -20,7 +20,7 @@ string.js - Copyright (C) 2012-2014, JP Richardson <[email protected]>
 !(function() {
   "use strict";
 
-  var VERSION = '3.1.0';
+  var VERSION = '3.1.1';
 
   var ENTITIES = {};
 
@@ -81,11 +81,11 @@ string.js - Copyright (C) 2012-2014, JP Richardson <[email protected]>
       var s = this.s;
       var startPos = s.indexOf(left);
       var endPos = s.indexOf(right, startPos + left.length);
-      if (endPos == -1 && right != null) 
+      if (endPos == -1 && right != null)
         return new this.constructor('')
       else if (endPos == -1 && right == null)
         return new this.constructor(s.substring(startPos + left.length))
-      else 
+      else
         return new this.constructor(s.slice(startPos + left.length, endPos));
     },
 
@@ -161,7 +161,7 @@ string.js - Copyright (C) 2012-2014, JP Richardson <[email protected]>
       .replace(/&([^;\W]+;?)/g, function (m, e) {
         var ee = e.replace(/;$/, '');
         var target = ENTITIES[e] || (e.match(/;$/) && ENTITIES[ee]);
-            
+
         if (typeof target === 'number') {
           return String.fromCharCode(target);
         }
@@ -246,7 +246,7 @@ string.js - Copyright (C) 2012-2014, JP Richardson <[email protected]>
         return this.right(-N);
       }
     },
-    
+
     lines: function() { //convert windows newlines to unix newlines then convert to an Array of lines
       return this.replaceAll('\r\n', '\n').s.split('\n');
     },
@@ -490,9 +490,9 @@ string.js - Copyright (C) 2012-2014, JP Richardson <[email protected]>
 
     trim: function() {
       var s;
-      if (typeof __nsp.trim === 'undefined') 
+      if (typeof __nsp.trim === 'undefined')
         s = this.s.replace(/(^\s*|\s*$)/g, '')
-      else 
+      else
         s = this.s.trim()
       return new this.constructor(s);
     },
@@ -576,19 +576,19 @@ string.js - Copyright (C) 2012-2014, JP Richardson <[email protected]>
         var shouldQualify = hasVal(qualifier)
         if (typeof dataArray[i] == 'number')
           shouldQualify &= encloseNumbers;
-        
+
         if (shouldQualify)
           buildString.push(qualifier);
-        
+
         if (dataArray[i] !== null && dataArray[i] !== undefined) {
           var d = new S(dataArray[i]).replaceAll(qualifier, rep).s;
           buildString.push(d);
-        } else 
+        } else
           buildString.push('')
 
         if (shouldQualify)
           buildString.push(qualifier);
-        
+
         if (delim)
           buildString.push(delim);
       }
@@ -717,7 +717,8 @@ string.js - Copyright (C) 2012-2014, JP Richardson <[email protected]>
       var name = names[i];
       var func = __nsp[name];
       try {
-        var type = typeof func.apply('teststring', []);
+        // #127: pass extra parameter to keep shelljs happy
+        var type = typeof func.apply('test', ['string']);
         retObj[name] = type;
       } catch (e) {}
     }