Disambiguation for files in git commands

With many git commands it is safer to disambiguate files from refs by
putting '--' in front of the list of files.

Also corrected a margin in the git submit panel.

src/plugins/git/gitclient.cpp

@@ -170,7 +170,7 @@ void GitClient::diff(const QString &workingDirectory, const QStringList &fileNam
       if (Git::Constants::debug)
         qDebug() << "diff" << workingDirectory << fileNames;
     QStringList arguments;
-    arguments << QLatin1String("diff") << fileNames;
+    arguments << QLatin1String("diff") << QLatin1String("--") << fileNames;
 
     const QString kind = QLatin1String(Git::Constants::GIT_DIFF_EDITOR_KIND);
     const QString title = tr("Git Diff");
@@ -187,7 +187,7 @@ void GitClient::diff(const QString &workingDirectory, const QString &fileName)
     QStringList arguments;
     arguments << QLatin1String("diff");
     if (!fileName.isEmpty())
-            arguments << fileName;
+        arguments << QLatin1String("--") << fileName;
 
     const QString kind = QLatin1String(Git::Constants::GIT_DIFF_EDITOR_KIND);
     const QString title = tr("Git Diff %1").arg(fileName);
@@ -246,7 +246,7 @@ void GitClient::blame(const QString &workingDirectory, const QString &fileName)
     if (Git::Constants::debug)
         qDebug() << "blame" << workingDirectory << fileName;
     QStringList arguments(QLatin1String("blame"));
-    arguments << fileName;
+    arguments << QLatin1String("--") << fileName;
 
     const QString kind = QLatin1String(Git::Constants::GIT_BLAME_EDITOR_KIND);
     const QString title = tr("Git Blame %1").arg(fileName);
@@ -314,7 +314,7 @@ bool GitClient::synchronousReset(const QString &workingDirectory,
     QByteArray outputText;
     QByteArray errorText;
     QStringList arguments;
-    arguments << QLatin1String("reset") << QLatin1String("HEAD") << files;
+    arguments << QLatin1String("reset") << QLatin1String("HEAD") << QLatin1String("--") << files;
     const bool rc = synchronousGit(workingDirectory, arguments, &outputText, &errorText);
     const QString output = QString::fromLocal8Bit(outputText);
     m_plugin->m_outputWindow->popup(false);
@@ -643,9 +643,9 @@ GitCommand::~GitCommand()
 {
 }
 
-void GitCommand::execute(const QStringList &arguments
+void GitCommand::execute(const QStringList &arguments,
-                 , const QString &workingDirectory
+                         const QString &workingDirectory,
-                 , const ProjectExplorer::Environment &environment)
+                         const ProjectExplorer::Environment &environment)
 {
     if (Git::Constants::debug)
         qDebug() << "GitCommand::execute" << workingDirectory << arguments;
@@ -663,9 +663,9 @@ void GitCommand::execute(const QStringList &arguments
                             , Core::ProgressManagerInterface::CloseOnSuccess);
 }
 
-void GitCommand::run(const QStringList &arguments
+void GitCommand::run(const QStringList &arguments,
-                 , const QString &workingDirectory
+                     const QString &workingDirectory,
-                 , const ProjectExplorer::Environment &environment)
+                     const ProjectExplorer::Environment &environment)
 {
     if (Git::Constants::debug)
         qDebug() << "GitCommand::run" << workingDirectory << arguments;

src/plugins/git/gitsubmiteditorwidget.cpp

@@ -57,7 +57,7 @@ GitSubmitEditorPanelData GitSubmitEditorWidget::panelData() const
     rc.author = m_gitSubmitPanelUi.authorLineEdit->text();
     rc.email = m_gitSubmitPanelUi.emailLineEdit->text();
     return rc;
-};
+}
 
 void GitSubmitEditorWidget::setPanelData(const GitSubmitEditorPanelData &data)
 {

src/plugins/git/gitsubmitpanel.ui

@@ -11,6 +11,9 @@
    </rect>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="margin">
+    <number>0</number>
+   </property>
    <item>
     <widget class="QGroupBox" name="infoGroup">
      <property name="title">

src/plugins/vcsbase/vcsbasesubmiteditor.cpp

@@ -299,4 +299,4 @@ QIcon VCSBaseSubmitEditor::submitIcon()
     return QIcon(QLatin1String(":/vcsbase/images/submit.png"));
 }
 
-}
+} // namespace VCSBase