* stable-5.1:
Add missing @since tag on FileTreeIterator#getLastModifiedInstant
Prepare 5.1.10-SNAPSHOT builds
JGit v5.1.9.
201908210455-r
Avoid sign extension when comparing mtime with Instant#getEpochSecond
Fix deprecation in DirCache caused by Instant based DirCacheEntry
Change-Id: Id824c0b8b14dad5947ae9da1f90c3471e07b400f
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>