Fix Email sending from the plugin

Sender was not set for the emails.

Fixes: QTBI-1644
Change-Id: I5b6a01f483cbd3347b806e37f8c99efe208a4315
Reviewed-by: Kari Oikarinen <[email protected]>

Author: jujokini

src/main/java/com/googlesource/gerrit/plugins/qtcodereview/QtCommandBuildApprove.java

@@ -313,9 +313,11 @@ private void sendResultEmail(Change.Id changeId, Boolean passed) {
         try {
             if (passed) {
                 MergedSender mcm = mergedSenderFactory.create(projectKey, changeId);
+                mcm.setFrom(user.getAccountId());
                 mcm.send();
             } else {
                 RevertedSender rcm = revertedSenderFactory.create(projectKey, changeId);
+                rcm.setFrom(user.getAccountId());
                 rcm.send();
             }
         } catch (Exception e) {