remove trailing whitespace

Author: Metavirulent

acl/src/main/java/org/springframework/security/acls/domain/DefaultPermissionGrantingStrategy.java

@@ -154,7 +154,7 @@ public boolean isGranted(Acl acl, List<Permission> permission, List<Sid> sids,
 	 *    return ace.getPermission().getMask() == p.getMask();
 	 * }
 	 * }</pre>
-	 * 
+	 *
 	 * @param ace the ACE from the Acl holding the mask.
 	 * @param p the Permission we are checking against.
 	 * @return true, if the respective masks are considered to be equal.