TUT: remove extraneous '}' from dictionary input

tutorials/combustion/coldEngineFoam/freePiston/0/alphat

@@ -23,10 +23,7 @@ internalField   uniform 0;
 
 boundaryField
 {
-    back
-    {
-        type            wedge;
-    }
+    back  { type    wedge; }
     front { $back; }
     liner { $:wall.alphat; }
     cylinderHead { $liner; }

tutorials/combustion/coldEngineFoam/freePiston/0/nut

@@ -23,16 +23,12 @@ internalField   uniform 0;
 
 boundaryField
 {
-    back
-    {
-        type            wedge;
-    }
+    back  { type    wedge; }
     front { $back; }
     liner { $:wall.nut; }
     cylinderHead { $liner; }
     piston { $liner; }
 }
-}
 
 
 // ************************************************************************* //

tutorials/incompressible/overPimpleDyMFoam/cylinder/cylinderMesh/system/controlDict

@@ -45,6 +45,5 @@ timePrecision   6;
 
 runTimeModifiable true;
 
-}
 
 // ************************************************************************* //

tutorials/incompressible/overSimpleFoam/aeroFoil/background_snappyHexMesh/system/controlDict

@@ -44,6 +44,5 @@ timePrecision   6;
 
 runTimeModifiable true;
 
-}
 
 // ************************************************************************* //