STYLE: Minor comment correction

src/finiteVolume/finiteVolume/ddtSchemes/CoEulerDdtScheme/CoEulerDdtScheme.H

@@ -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
@@ -31,7 +31,7 @@ Description
     does not exceed the specified value.
 
     This scheme should only be used for steady-state computations
-    using transient codes where local time-stepping is preferably to
+    using transient codes where local time-stepping is preferable to
     under-relaxation for transport consistency reasons.
 
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