wxGUI: cosmetics in label

       (merge from devbr6, https://trac.osgeo.org/grass/changeset/38156)


git-svn-id: https://svn.osgeo.org/grass/grass/trunk@38157 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/preferences.py

@@ -1161,7 +1161,7 @@ class PreferencesDialog(wx.Dialog):
         # proj
         row += 1
         label = wx.StaticText(parent=panel, id=wx.ID_ANY,
-                              label=_("Proj.4 string:"))
+                              label=_("Proj.4 string (required):"))
         projString = wx.TextCtrl(parent=panel, id=wx.ID_ANY,
                                  value=self.settings.Get(group='display', key='projection', subkey='proj4'),
                                  name="GetValue", size=(400, -1))