Update notes for submitted changes

* Remove unnecessary type specifications
* Use String.isEmpty() instead of comparing to ""
* Use StringBuilder instead of StringBuffer where possible.
* Replace usage of String.indexOf with String.contains where possible

0d/b509f7e750336923fcee858a7152129dc1a321

@@ -0,0 +1,7 @@
+Code-Review+2: David Pursehouse <david.pursehouse@gmail.com>
+Verified+1: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-by: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-at: Wed, 10 Apr 2019 23:01:57 -0400
+Reviewed-on: https://git.eclipse.org/r/140159
+Project: jgit/jgit
+Branch: refs/heads/master

38/eaa490f2500f3c682541f295232673b2c9663b

@@ -0,0 +1,7 @@
+Code-Review+2: David Pursehouse <david.pursehouse@gmail.com>
+Verified+1: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-by: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-at: Wed, 10 Apr 2019 23:01:57 -0400
+Reviewed-on: https://git.eclipse.org/r/140160
+Project: jgit/jgit
+Branch: refs/heads/master

bf/251ea0e844c1269256845ac032a44a49a9e88a

@@ -0,0 +1,7 @@
+Code-Review+2: David Pursehouse <david.pursehouse@gmail.com>
+Verified+1: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-by: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-at: Wed, 10 Apr 2019 23:01:57 -0400
+Reviewed-on: https://git.eclipse.org/r/140154
+Project: jgit/jgit
+Branch: refs/heads/master

e8/76a70ede47559f927fa285169f267aa445f2dd

@@ -0,0 +1,7 @@
+Code-Review+2: David Pursehouse <david.pursehouse@gmail.com>
+Verified+1: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-by: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-at: Wed, 10 Apr 2019 23:01:57 -0400
+Reviewed-on: https://git.eclipse.org/r/140157
+Project: jgit/jgit
+Branch: refs/heads/master