Fix naming consistency.

Author: RubenVerborgh

lib/N3Parser.js

@@ -373,7 +373,7 @@ N3Parser.prototype = {
   _readListItem: function (token) {
     var item = null,                      // The item of the list
         list = null,                      // The list itself
-        prevList = this._subject,         // The previous list that contains this list
+        previousList = this._subject,     // The previous list that contains this list
         stack = this._contextStack,       // The stack of parent contexts
         parent = stack[stack.length - 1], // The parent containing the current list
         next = this._readListItem;        // The next function to execute
@@ -439,7 +439,7 @@ N3Parser.prototype = {
       this._subject = list = this._blank();
 
     // Is this the first element of the list?
-    if (prevList === null) {
+    if (previousList === null) {
       // This list is either the subject or the object of its parent
       if (parent.predicate === null)
         parent.subject = list;
@@ -448,7 +448,7 @@ N3Parser.prototype = {
     }
     else {
       // Continue the previous list with the current list
-      this._emit(prevList, this.RDF_REST, list, this._graph);
+      this._emit(previousList, this.RDF_REST, list, this._graph);
     }
     // If an item was read, add it to the list
     if (item !== null) {