doc: Use Octave coding conventions in @example blocks of docstrings. * accumarray.m, accumdim.m, bar.m, base2dec.m, bincoeff.m, bitcmp.m, bitset.m, celldisp.m, chop.m, clabel.m, cloglog.m, colon.m, compass.m, computer.m, contour3.m, contourc.m, corr.m, cstrcat.m, ctime.m, cylinder.m, date.m, dec2base.m, demo.m, dir.m, dlmwrite.m, expm.m, ezcontourf.m, ezcontour.m, ezmeshc.m, ezmesh.m, ezplot.m, ezsurfc.m, ezsurf.m, feather.m, findobj.m, flipdim.m, fplot.m, genvarname.m, getfield.m, hankel.m, hilb.m, hist.m, idivide.m, index.m, int2str.m, interp1.m, is_leap_year.m, ismember.m, isocolors.m, isonormals.m, isosurface.m, kurtosis.m, legendre.m, linkprop.m, logit.m, logm.m, __makeinfo__.m, __marching_cube__.m, median.m, mkoctfile.m, moment.m, mpoles.m, orderfields.m, pcg.m, pcr.m, plot3.m, plotmatrix.m, polyaffine.m, polygcd.m, poly.m, polyout.m, print.m, qp.m, quadgk.m, qzhess.m, randi.m, rat.m, refreshdata.m, residue.m, rose.m, rot90.m, saveas.m, saveobj.m, shiftdim.m, skewness.m, spaugment.m, spdiags.m, sqp.m, stem.m, str2num.m, strcat.m, strjust.m, strread.m, strsplit.m, structfun.m, subplot.m, subsindex.m, substruct.m, surfl.m, surfnorm.m, svds.m, uimenu.m, union.m, voronoi.m, warning_ids.m, wblpdf.m: Use Octave coding conventions in @example blocks of docstrings.

--- a/scripts/io/dlmwrite.m
+++ b/scripts/io/dlmwrite.m
@@ -40,6 +40,7 @@
 ##
 ## In addition, the following keyword value pairs may appear at the end
 ## of the argument list:
+##
 ## @table @asis
 ## @item "append"
 ## Either @samp{"on"} or @samp{"off"}.  See @samp{"-append"} above.
@@ -49,9 +50,9 @@
 ##
 ## @item "newline"
 ## The character(s) to use to separate each row.  Three special cases
-## exist for this option.  @samp{"unix"} is changed into '\n',
-## @samp{"pc"} is changed into '\r\n', and @samp{"mac"} is changed
-## into '\r'.  Other values for this option are kept as is.
+## exist for this option.  @samp{"unix"} is changed into "\n",
+## @samp{"pc"} is changed into "\r\n", and @samp{"mac"} is changed
+## into "\r".  Other values for this option are kept as is.
 ##
 ## @item "roffset"
 ## See @var{r} above.