fixing javadoc formatting

Author: johnscancella

src/main/java/gov/loc/repository/bagit/exceptions/InvalidFetchFormatException.java

@@ -4,7 +4,7 @@
  * Class to represent an error when the bag fetch file does not conform to the bagit spec, 
  * namely: <br>
  * &lt;URL&gt; &lt;SIZE IN BYTES or -&gt; &lt;data/PATH/FILENAME&gt; 
- * <br></pre>
+ * <br>
  */
 public class InvalidFetchFormatException extends Exception {
   private static final long serialVersionUID = 1L;

src/main/java/gov/loc/repository/bagit/exceptions/InvalidManifestFormatException.java

@@ -4,7 +4,7 @@
  * Class to represent an error when the bag manifest file does not conform to the bagit spec, 
  * namely: <br>
  * &lt;CHECKSUM&gt; &lt;data/PATH/FILENAME&gt; 
- * <br></pre>
+ * <br>
  */
 public class InvalidManifestFormatException extends Exception {
   private static final long serialVersionUID = 1L;

src/main/java/gov/loc/repository/bagit/verify/CheckIfFileExistsTask.java

@@ -36,6 +36,12 @@ public void run() {
     latch.countDown();
   }
 
+  /**
+   * if a file is parially normalized or of a different normalization then the manifest specifies it will fail the existence test.
+   * This method checks for that by normalizing what is on disk with the normalized filename and see if they match.
+   * 
+   * @return true if the normalized filename matches one on disk in the specified folder
+   */
   private boolean existsNormalized(){
     final String normalizedFile = Normalizer.normalize(file.toString(), Normalizer.Form.NFD);
     final Path parent = file.getParent();