STYLE: tabs and line length in files, very dubious NULL in ensight reader.

- disable automatically upgrading copyrights in files since changes to
  not automatically imply a change in copyright. Eg, fixing a typo in
  comments, or changing a variable from 'loopI' to 'loopi' etc.

applications/utilities/mesh/advanced/snappyRefineMesh/snappyRefineMesh.C

@@ -651,7 +651,7 @@ int main(int argc, char *argv[])
     );
 
     // corrector for mesh motion
-    twoDPointCorrector* correct2DPtr = NULL;
+    twoDPointCorrector* correct2DPtr = nullptr;
 
     if (motionObj.typeHeaderOk<IOdictionary>(true))
     {