Git: Add Mixed reset (as default)

This is the default in Git

Change-Id: I65b5c0003a731799812d143d3142b58b30ddb878
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

src/plugins/git/logchangedialog.cpp

@@ -72,6 +72,7 @@ LogChangeDialog::LogChangeDialog(bool isReset, QWidget *parent)
     if (isReset) {
         popUpLayout->addWidget(new QLabel(tr("Reset type:"), this));
         m_resetTypeComboBox = new QComboBox(this);
+        m_resetTypeComboBox->addItem(tr("Mixed"), QLatin1String("--mixed"));
         m_resetTypeComboBox->addItem(tr("Hard"), QLatin1String("--hard"));
         m_resetTypeComboBox->addItem(tr("Soft"), QLatin1String("--soft"));
         popUpLayout->addWidget(m_resetTypeComboBox);