Javadoc: Better wording

src/test/java/org/apache/commons/logging/PathableClassLoader.java

@@ -74,7 +74,7 @@ public class PathableClassLoader extends URLClassLoader {
     /**
      * Constructor.
      * <p>
-     * Often, null is passed as the parent, ie the parent of the new
+     * Often, null is passed as the parent, that is, the parent of the new
      * instance is the bootloader. This ensures that the classpath is
      * totally clean; nothing but the standard java library will be
      * present.

src/test/java/org/apache/commons/logging/security/MockSecurityManager.java

@@ -139,7 +139,7 @@ public class MockSecurityManager extends SecurityManager {
     /**
      * This returns the number of times that a check of a permission failed
      * due to stack-walking tracing up into untrusted code. Any non-zero
-     * value indicates a bug in JCL, ie a situation where code was not
+     * value indicates a bug in JCL, that is, a situation where code was not
      * correctly wrapped in an AccessController block. The result of such a
      * bug is that signing JCL is not sufficient to allow JCL to perform
      * the operation; the caller would need to be signed too.