Remove trailing whitespace at end of lines. * stl_algo.h-fixed, container.txi, genpropdoc.m, gui.txi, plot.txi, plotimages.m, RELEASE.PROCESS, Figure.cc, Figure.h, gl-render.h, gl2ps-renderer.cc, gl2ps-renderer.h, graphics.cc, jit-typeinfo.cc, sub2ind.cc, txt-eng-ft.cc, txt-eng-ft.h, ov-base-diag.h, ov-base-mat.cc, pt-eval.cc, CMatrix.cc, acinclude.m4, quadgk.m, uicontextmenu.m, uicontrol.m, uipanel.m, uipushtool.m, uitoggletool.m, uitoolbar.m, waitbar.m, imshow.m, viridis.m, ode_event_handler.m, fminunc.m, fplot.m, plot.m, surfnorm.m, quantile.m, datevec.m: Remove trailing whitespace at end of lines.

--- a/libinterp/corefcn/gl-render.h	Wed Nov 18 16:12:41 2015 -0800
+++ b/libinterp/corefcn/gl-render.h	Wed Nov 18 16:40:22 2015 -0800
@@ -127,7 +127,7 @@
   virtual void text_to_strlist (const std::string& txt,
                                 std::list<ft_render::ft_string>& lst,
                                 Matrix& bbox,
-                                int halign = 0, int valign = 0, 
+                                int halign = 0, int valign = 0,
                                 double rotation = 0.0);
 
   virtual Matrix render_text (const std::string& txt,