maint: Use common indentation for switch statement. * scripts/general/interp1.m, scripts/geometry/delaunay.m, scripts/help/__unimplemented__.m, scripts/image/cmunique.m, scripts/miscellaneous/edit.m, scripts/optimization/fzero.m, scripts/optimization/sqp.m, scripts/plot/__gnuplot_drawnow__.m, scripts/plot/hidden.m, scripts/plot/legend.m, scripts/plot/print.m, scripts/plot/printd.m, scripts/plot/private/__contour__.m, scripts/plot/private/__fltk_print__.m, scripts/plot/private/__gnuplot_print__.m, scripts/plot/private/__go_draw_axes__.m, scripts/plot/private/__print_parse_opts__.m, scripts/signal/periodogram.m, scripts/sparse/bicg.m, test/slice.tst, test/switch.tst: Use common indentation for switch statement.

5a51fb7777a9950502965a043a70bd6ca5e0498b gnulib-hg