wxGUI: simplify calculation of sash position for command output

       (merge https://trac.osgeo.org/grass/changeset/49110 from devbr6)


git-svn-id: https://svn.osgeo.org/grass/grass/trunk@49111 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/wxgui.py

@@ -218,11 +218,7 @@ class GMFrame(wx.Frame):
         self.goutput.Redirect()
         
         # fix goutput's pane size (required for Mac OSX)`
-        if sys.platform == 'darwin':
-            coef = .80
-        else:
-            coef = .54
-        self.goutput.SetSashPosition(int(self.GetSize()[1] * coef))
+        self.goutput.SetSashPosition(int(self.GetSize()[1] * .8))
         
         self.workspaceChanged = False