doc: Periodic grammar check of documentation. * accumarray.m, repmat.m, imshow.m, strread.m, edit.m, mkoctfile.m, warning_ids.m, glpk.m, lsqnonneg.m, optimset.m, pqpnonneg.m, figure.m, print.m, __print_parse_opts__.m, gmres.m, zscore.m, __init_fltk__.cc, cellfun.cc, nproc.cc, regexp.cc, spparms.cc, dirfns.cc, file-io.cc, load-save.cc, ov-null-mat.cc, ov-usr-fcn.cc, variables.cc: Periodic grammar check of documentation.

--- a/scripts/sparse/gmres.m
+++ b/scripts/sparse/gmres.m
@@ -49,6 +49,7 @@
 ##
 ## @itemize @minus
 ## @item @var{flag} indicates the exit status:
+##
 ## @table @asis
 ## @item 0 : iteration converged to within the specified tolerance
 ##