Stop retrying if thread is interrupted

InterruptedException should always be honored.

Change-Id: I64bfdb3840bf4fff438b88712dbd1400bd507418

src/main/java/com/ericsson/gerrit/plugins/syncevents/HttpClientProvider.java

diff --git a/src/main/java/com/ericsson/gerrit/plugins/syncevents/HttpClientProvider.java b/src/main/java/com/ericsson/gerrit/plugins/syncevents/HttpClientProvider.java
index 63783fc..95821ce 100644
--- a/src/main/java/com/ericsson/gerrit/plugins/syncevents/HttpClientProvider.java
+++ b/src/main/java/com/ericsson/gerrit/plugins/syncevents/HttpClientProvider.java
@@ -104,7 +104,8 @@
         try {
           Thread.sleep(cfg.getRetryInterval());
         } catch (InterruptedException e) {
-          log.debug("Ignoring InterruptedException", e);
+          Thread.currentThread().interrupt();
+          return false;
         }
         return true;
       }