Git: Fix draft ref for gerrit

Change-Id: I884bcab46a7e11cbc3ea6c453bddd8b9d599e4cc
Reviewed-by: Petar Perisin <petar.perisin@gmail.com>

src/plugins/git/gerrit/gerritpushdialog.cpp

@@ -238,7 +238,7 @@ QString GerritPushDialog::selectedRemoteBranchName() const
 
 QString GerritPushDialog::selectedPushType() const
 {
-    return m_ui->draftCheckBox->isChecked() ? QLatin1String("draft") : QLatin1String("for");
+    return m_ui->draftCheckBox->isChecked() ? QLatin1String("drafts") : QLatin1String("for");
 }
 
 QString GerritPushDialog::selectedTopic() const