Minor performance improvement. Use String.lastIndexOf(int)/indexOf(int) instead of String.lastIndexOf(String)/indexOf(String).

git-svn-id: https://svn.apache.org/repos/asf/xalan/java/trunk@1225582 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/org/apache/xalan/xsltc/runtime/BasisLibrary.java b/src/org/apache/xalan/xsltc/runtime/BasisLibrary.java
index 5d72017..7c31f6e 100644
--- a/src/org/apache/xalan/xsltc/runtime/BasisLibrary.java
+++ b/src/org/apache/xalan/xsltc/runtime/BasisLibrary.java
@@ -1362,8 +1362,8 @@
      * This method should only be invoked if the name attribute is an AVT
      */    
     public static void checkAttribQName(String name) {
-        final int firstOccur = name.indexOf(":");
-        final int lastOccur = name.lastIndexOf(":");
+        final int firstOccur = name.indexOf(':');
+        final int lastOccur = name.lastIndexOf(':');
         final String localName = name.substring(lastOccur + 1);
         
         if (firstOccur > 0) {