Minor touch-up

Add '*.orig' to .gitignore
Add '.' to string

.gitignore

@@ -7,3 +7,4 @@ qrc_*
 Makefile
 qtox
 *.qm
+*.orig

src/widget/form/addfriendform.cpp

@@ -97,7 +97,7 @@ void AddFriendForm::onSendTriggered()
     } else {
         if (Settings::getInstance().getUseProxy())
         {
-            QMessageBox::StandardButton btn = QMessageBox::warning(main, "qTox", tr("qTox needs to use the Tox DNS, but can't do it through a proxy\n\
+            QMessageBox::StandardButton btn = QMessageBox::warning(main, "qTox", tr("qTox needs to use the Tox DNS, but can't do it through a proxy.\n\
 Ignore the proxy and connect to the Internet directly ?"), QMessageBox::Ok|QMessageBox::No, QMessageBox::No);
             if (btn != QMessageBox::Ok)
                 return;