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/image/rainbow.m	Wed Apr 11 19:34:53 2012 -0400
+++ b/scripts/image/rainbow.m	Wed Apr 11 22:07:00 2012 -0400
@@ -48,16 +48,15 @@
   elseif (n > 1)
     x = linspace (0, 1, n)';
 
-    r = (x < 2/5) \
-        + (x >= 2/5 & x < 3/5) .* (-5 * x + 3) \
-        + (x >= 4/5) .* (10/3 * x - 8/3);
+    r = ((x < 2/5)
+         + (x >= 2/5 & x < 3/5) .* (-5 * x + 3)
+         + (x >= 4/5) .* (10/3 * x - 8/3));
 
-    g = (x < 2/5) .* (5/2 * x) \
-        + (x >= 2/5 & x < 3/5) \
-        + (x >= 3/5 & x < 4/5) .* (-5 * x + 4);
+    g = ((x < 2/5) .* (5/2 * x)
+         + (x >= 2/5 & x < 3/5)
+         + (x >= 3/5 & x < 4/5) .* (-5 * x + 4));
 
-    b = (x >= 3/5 & x < 4/5) .* (5 * x - 3) \
-        + (x >= 4/5);
+    b = (x >= 3/5 & x < 4/5) .* (5 * x - 3) + (x >= 4/5);
 
     map = [r, g, b];
   else