Update to JGit 0.8.4.89-ge2f5716

Change-Id: I10278b915925092aa9b07194c6777b8678cbc6f5
Signed-off-by: Shawn O. Pearce <sop@google.com>

pom.xml

diff --git a/pom.xml b/pom.xml
index 8eb8b4f..070c3b5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,7 +46,7 @@
   </issueManagement>
 
   <properties>
-    <jgitVersion>0.8.4.88-ge64cb03</jgitVersion>
+    <jgitVersion>0.8.4.89-ge2f5716</jgitVersion>
     <gwtormVersion>1.1.4</gwtormVersion>
     <gwtjsonrpcVersion>1.2.2</gwtjsonrpcVersion>
     <gwtexpuiVersion>1.2.1</gwtexpuiVersion>