changed OK button to Open as it's a open dialog - seems more reasonable to me

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@12094 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: macho

src/ui/qgsopenvectorlayerdialogbase.ui

@@ -413,7 +413,7 @@
    <item row="4" column="0">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Help|QDialogButtonBox::Ok</set>
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Help|QDialogButtonBox::Open</set>
      </property>
     </widget>
    </item>