corr "yerrorlines" -> "yerrorbars"

pub/plot/gnuplotter.cpp

@@ -106,7 +106,7 @@ void CGnuPlotter::add_spec(
                          % ccolor[(style_no-1) % ccolor.size()]);
     else {
         gp_fnames += str(format(" with %s pt %i lc rgb \"#%6x\" lw 2")
-                         % (plot_errorbars && dyp.size() ? "yerrorlines" : "points")
+                         % (plot_errorbars && dyp.size() ? "yerrorbars" : "points")
                          % style_no % pcolor[(style_no-1) %  pcolor.size()]);
     }
     FILE* gp_fd;