Fix formatting in various code to match spacing from coding style

library/ecdh.c

@@ -101,13 +101,13 @@ void ecdh_free( ecdh_context *ctx )
         return;
 
     ecp_group_free( &ctx->grp );
-    mpi_free      ( &ctx->d   );
     ecp_point_free( &ctx->Q   );
     ecp_point_free( &ctx->Qp  );
-    mpi_free      ( &ctx->z   );
     ecp_point_free( &ctx->Vi  );
     ecp_point_free( &ctx->Vf  );
-    mpi_free      ( &ctx->_d  );
+    mpi_free( &ctx->d  );
+    mpi_free( &ctx->z  );
+    mpi_free( &ctx->_d );
 }
 
 /*