Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  Upgrade JGit to 4.9.8.201812241815-r
  Upgrade JGit to 4.7.7.201812240805-r

Change-Id: I2a4e8ff6c7672b40a6b33f270a92586eaa283852
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 41731ab..f82ba8c 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -111,8 +111,8 @@
     maven_jar(
         name = "jgit",
         artifact =
-            "org.eclipse.jgit:org.eclipse.jgit:4.7.2.201807261330-r",
-        sha1 = "6c08ef848fa5f7d5d49776fa25ec24d738ee457d",
+            "org.eclipse.jgit:org.eclipse.jgit:4.9.8.201812241815-r",
+        sha1 = "dedb5d05a952551dc465611ebde3819d86bb22fc",
     )
 
     maven_jar(