Use Matlab coding conventions for demos in plot/ directory. * contrast.m, axis.m, clabel.m, colorbar.m, comet.m, contour.m, contour3.m, cylinder.m, daspect.m, errorbar.m, ezplot.m, fplot.m, grid.m, hold.m, isosurface.m, legend.m, loglog.m, loglogerr.m, pareto.m, patch.m, pbaspect.m, pie.m, pie3.m, plot3.m, plotmatrix.m, plotyy.m, quiver.m, quiver3.m, rectangle.m, refreshdata.m, scatter.m, scatter3.m, semilogx.m, semilogxerr.m, semilogy.m, semilogyerr.m, shading.m, stem.m, subplot.m, text.m, title.m, trimesh.m, triplot.m, trisurf.m, uigetdir.m, uigetfile.m, uimenu.m, uiputfile.m, waitbar.m, xlim.m, ylim.m, zlim.m: Use Matlab coding conventions for demos so that compare plots scripts will function.

--- a/scripts/plot/semilogyerr.m
+++ b/scripts/plot/semilogyerr.m
@@ -67,6 +67,6 @@
 %! y = wblpdf (x, 4, 2);
 %! eyu = rand (size (y));
 %! eyl = 1.0 - 1./(1+eyu);
-%! semilogyerr (x, y, eyl.*y, eyu.*y, "~-d");
+%! semilogyerr (x, y, eyl.*y, eyu.*y, '~-d');
 %! xlim ([0 10]);