Replace function handles with function names in cellfun calls for 15% speedup. * accumarray.m arrayfun.m, blkdiag.m, cell2mat.m, common_size.m, interp3.m, interpn.m, __isequal__.m, structfun.m, voronoi.m, strread.m, fullfile.m, getfield.m, __xzip__.m, setfield.m, what.m, pkg.m, axis.m, pareto.m, __ghostscript__.m, __go_draw_axes__.m, __patch__.m, refreshdata.m, whitebg.m, lcm.m, index.m, strcat.m, strmatch.m, validatestring.m: Replace function handles in calls to cellfun with double quoted function names.

--- a/scripts/miscellaneous/what.m
+++ b/scripts/miscellaneous/what.m
@@ -90,7 +90,7 @@
   if (length (f) > 0)
     printf ("%s %s:\n\n", msg, p);
 
-    maxlen = max (cellfun (@length, f));
+    maxlen = max (cellfun ("length", f));
     ncols = max (1, floor (terminal_size()(2) / (maxlen + 3)));
     fmt = "";
     for i = 1: ncols