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/src/dirfns.cc	Wed Feb 15 12:48:22 2012 -0800
+++ b/src/dirfns.cc	Wed Feb 15 13:31:31 2012 -0800
@@ -554,6 +554,7 @@
 them, or an empty cell array if no patterns match.  The pattern strings are\n\
 interpreted as filename globbing patterns (as they are used by Unix shells).\n\
 Within a pattern\n\
+\n\
 @table @code\n\
 @itemx *\n\
 matches any string, including the null string,\n\