STYLE: Typo in warning message

applications/utilities/mesh/manipulation/checkMesh/checkTopology.C

@@ -71,7 +71,7 @@ Foam::label Foam::checkTopology
             {
                 Info<< " ***FaceZone " << mesh.faceZones()[zoneI].name()
                     << " is not correctly synchronised"
-                    << " acrosss coupled boundaries."
+                    << " across coupled boundaries."
                     << " (coupled faces both"
                     << " present in set but with opposite flipmap)" << endl;
                 noFailedChecks++;