ENH: timeSelector: improved comment

src/OpenFOAM/db/Time/timeSelector.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -147,7 +147,7 @@ void Foam::timeSelector::addOptions
     (
         "time",
         "ranges",
-        "comma-separated time ranges - eg, ':10,20,40-70,1000:'"
+        "comma-separated time ranges - eg, ':10,20,40:70,1000:'"
     );
 }