minor punctuation improvements in javadocs

git-svn-id: https://svn.apache.org/repos/asf/xerces/java/branches/xml-schema-1.1-dev@954700 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/org/apache/xerces/impl/xs/AbstractPsychoPathImpl.java b/src/org/apache/xerces/impl/xs/AbstractPsychoPathImpl.java
index ce351bd..91e3608 100644
--- a/src/org/apache/xerces/impl/xs/AbstractPsychoPathImpl.java
+++ b/src/org/apache/xerces/impl/xs/AbstractPsychoPathImpl.java
@@ -80,7 +80,7 @@
 import org.w3c.dom.Element;
 
 /**
- * A base class, providing common services for XPath 2 evaluation, with
+ * A base class providing common services for XPath 2 evaluation, with
  * PsychoPath XPath 2.0 engine.
  * 
  * @xerces.internal