The man page dtksh.1 only refers to the dt extensions. For options,
operands, input files, etc, such man page points to the (k)sh.1 man
page. Since the version of ksh installed with the OS is different from
the one used to build dtksh, the correct documantation of dtksh can be
found only in cde's ksh man page. To avoid any conflict or confusion,
my patch renames cde's ksh.1 as ksh-cde.1
65e8cf9019