maint: miscellaneous style fixes for .m files * audio/mu2lin.m, deprecated/cut.m, general/cplxpair.m, general/genvarname.m, geometry/rectint.m, help/gen_doc_cache.m, image/hsv2rgb.m, image/rainbow.m, io/textscan.m, miscellaneous/bzip2.m, miscellaneous/compare_versions.m, miscellaneous/fact.m, miscellaneous/menu.m, optimization/fminbnd.m, optimization/fminunc.m, optimization/fzero.m, optimization/sqp.m, plot/__gnuplot_drawnow__.m, plot/axis.m, plot/findobj.m, plot/legend.m, plot/peaks.m, plot/private/__errplot__.m, plot/private/__fltk_print__.m, plot/private/__go_draw_axes__.m, plot/private/__patch__.m, polynomial/pchip.m, polynomial/residue.m, signal/periodogram.m, sparse/sprandsym.m, statistics/base/moment.m, statistics/distributions/expcdf.m, statistics/distributions/expinv.m, statistics/distributions/exppdf.m, statistics/tests/prop_test_2.m, statistics/tests/sign_test.m, statistics/tests/t_test.m, statistics/tests/t_test_2.m, statistics/tests/t_test_regression.m, strings/regexptranslate.m, time/datetick.m: Style fixes.

--- a/scripts/deprecated/cut.m
+++ b/scripts/deprecated/cut.m
@@ -51,10 +51,10 @@
   if (!isvector (x))
     error ("cut: X must be a vector");
   endif
-  if isscalar (breaks)
+  if (isscalar (breaks))
     breaks = linspace (min (x), max (x), breaks + 1);
     breaks(1) = breaks(1) - 1;
-  elseif isvector (breaks)
+  elseif (isvector (breaks))
     breaks = sort (breaks);
   else
     error ("cut: BREAKS must be a scalar or vector");
@@ -62,7 +62,7 @@
 
   group = NaN (size (x));
   m = length (breaks);
-  if any (k = find ((x >= min (breaks)) & (x < max (breaks))))
+  if (any (k = find ((x >= min (breaks)) & (x < max (breaks)))))
     n = length (k);
     group(k) = sum ((ones (m, 1) * reshape (x(k), 1, n))
                     >= (reshape (breaks, m, 1) * ones (1, n)));