Replace ++,-- with in-place operators for performance. * inputParser.m, int2str.m, interp2.m, interp3.m, interpn.m, __isequal__.m, voronoi.m, imshow.m, jet.m, __imread__.m, __imwrite__.m, imwrite_filename.m, dlmwrite.m, importdata.m, strread.m, krylov.m, fact.m, genvarname.m, fminbnd.m, fminsearch.m, fminunc.m, fsolve.m, fzero.m, lsqnonneg.m, pqpnonneg.m, qp.m, sqp.m, annotation.m, legend.m, orient.m, __bar__.m, __contour__.m, __patch__.m, __plt__.m, __scatter__.m, rectangle.m, surfc.m, figure.m, hdl2struct.m, pan.m, __gnuplot_draw_axes__.m, __gnuplot_ginput__.m, rotate3d.m, struct2hdl.m, zoom.m, freqz.m, periodogram.m, gmres.m, pcg.m, pcr.m, __sprand__.m, sprandsym.m, treelayout.m, treeplot.m, hadamard.m, hilb.m, iqr.m, assert.m, test.m: Replace ++,-- with in-place operators for performance.

--- a/scripts/general/interpn.m	Sun Nov 22 19:15:42 2015 -0800
+++ b/scripts/general/interpn.m	Sun Nov 22 20:25:17 2015 -0800
@@ -91,7 +91,7 @@
     nargs -= 2;
   elseif (ischar (varargin{end}))
     method = varargin{end};
-    nargs--;
+    nargs -= 1;
   endif
 
   if (method(1) == "*")