Merge branch 'stable-5.10' into stable-5.11

* stable-5.10:
  LockFile: create OutputStream only when needed
  Remove ReftableNumbersNotIncreasingException

Change-Id: Id6e0a78caf12c19a01a88d1ddb8a7df2b3590f98

diff --cc org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties
Simple merge

diff --cc org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java
Simple merge

diff --cc org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileReftableStack.java
Simple merge