--- a/inst/optiminterp1.m
+++ b/inst/optiminterp1.m
@@ -1,17 +1,17 @@
-## Copyright (C) 2006 Alexander Barth
+## Copyright (C) 2006 Alexander Barth <barth.alexander@gmail.com>
 ##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
+## This program is free software; you can redistribute it and/or modify it under
+## the terms of the GNU General Public License as published by the Free Software
+## Foundation; either version 3 of the License, or (at your option) any later
+## version.
 ##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
+## This program is distributed in the hope that it will be useful, but WITHOUT
+## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+## details.
 ##
-## You should have received a copy of the GNU General Public License
-## along with this program; If not, see <http://www.gnu.org/licenses/>.
+## You should have received a copy of the GNU General Public License along with
+## this program; if not, see <http://www.gnu.org/licenses/>.
 
 ## -*- texinfo -*-
 ## @deftypefn {Loadable Function} {[@var{fi},@var{vari}]} = optiminterp1(@var{x},@var{f},@var{var},@var{lenx},@var{m},@var{xi})
@@ -34,8 +34,8 @@
 ## background is added back to the interpolated field.
 ## @end deftypefn
 
-
-
 function [fi,vari] = optiminterp1(x,f,var,lenx,m,xi)
 
-[fi,vari] = optiminterpn(x,f,var,lenx,m,xi);
+  [fi,vari] = optiminterpn(x,f,var,lenx,m,xi);
+
+endfunction