--- a/scripts/statistics/base/qqplot.m
+++ b/scripts/statistics/base/qqplot.m
@@ -1,15 +1,15 @@
 ## Copyright (C) 1995, 1996, 1997  Kurt Hornik
-## 
+##
 ## 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, 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. 
-## 
+## General Public License for more details.
+##
 ## You should have received a copy of the GNU General Public License
 ## along with this file.  If not, write to the Free Software Foundation,
 ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
@@ -37,11 +37,11 @@
 ## Description:  Perform a QQ-plot (quantile plot)
 
 function [q, s] = qqplot (x, dist, ...)
-  
+
   if (nargin < 1)
     usage ("qqplot (x [,dist [,params]])");
   endif
-  
+
   if !(is_vector(x))
     error ("qqplot:  x must be a vector.");
   endif
@@ -65,7 +65,7 @@
     q = eval (sprintf ("%s (t, %s);", f, param_string));
     q_label = sprintf ("%s with parameter(s) %s", f, param_string);
   endif
-  
+
   if (nargout == 0)
     xlabel (q_label);
     ylabel ("sample points");