Update notes for submitted changes

* Use indexOf(char) and lastIndexOf(char) rather than String versions
* Reorder modifiers to follow Java Language Specification
* GitmoduleEntry: Remove redundant import of class from same package
* Remove redundant "static" qualifier from enum declarations

06/4834d350d38f672a69947cf924f56d52bd1274

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Thomas Wolf <thomas.wolf@paranor.ch>
+Submitted-by: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-at: Wed, 19 Feb 2020 06:36:06 -0500
+Reviewed-on: https://git.eclipse.org/r/157948
+Project: jgit/jgit
+Branch: refs/heads/stable-5.6

2d/1acae6d8a5e90e7bb5192ce1b99f2e2f436775

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Thomas Wolf <thomas.wolf@paranor.ch>
+Submitted-by: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-at: Wed, 19 Feb 2020 06:36:06 -0500
+Reviewed-on: https://git.eclipse.org/r/157947
+Project: jgit/jgit
+Branch: refs/heads/stable-5.6

6a/72f2943d31d0e5a3ed402b5b769dde17f691f5

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Thomas Wolf <thomas.wolf@paranor.ch>
+Submitted-by: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-at: Wed, 19 Feb 2020 06:36:06 -0500
+Reviewed-on: https://git.eclipse.org/r/157949
+Project: jgit/jgit
+Branch: refs/heads/stable-5.6

9b/e93b7991d6c1d82ba606d60bfd3b2971a60123

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Thomas Wolf <thomas.wolf@paranor.ch>
+Submitted-by: David Pursehouse <david.pursehouse@gmail.com>
+Submitted-at: Wed, 19 Feb 2020 06:36:06 -0500
+Reviewed-on: https://git.eclipse.org/r/157946
+Project: jgit/jgit
+Branch: refs/heads/stable-5.6