Log Message:
shells/ksh93: update to ksh 93u+m/1.0.6

CHANGES

# ksh 93u+m/1.0.6:

*    Fixed a serious regression in pathname expansion where quoted
     wildcard characters were incorrectly expanded if a pattern contains
     both a brace expansion and a variable expansion.
*    Fixed a bug where the command to launch a full-screen editor (^X^E
     in emacs and v in vi) could cause the wrong command line to be
     edited if two shell sessions share a .sh_history file.

# ksh 93u+m/1.0.5:

*	Fixed various bugs causing crashes.
*	Fixed many bugs in the emacs and vi line editors, in command
	 completion, and in file name completion.
*	Fixed various bugs in the handling of quotes, backslash escapes and
	braces when processing shell glob patterns (e.g. in pathname expansion
	and case).
*	ksh now throws a panic and exits if a read error (such as an I/O
	error) occurs while trying to read the next command(s) from a running
	script.
*	Fixed many bugs in printf and print -f built-in commands, including:

	- Multiple bugs causing incorrect output for relative date
	  specifications, e.g., printf %T\\n 'exactly 20 months ago' now
	  outputs a correct result.
	- More printf bugs with mix and match of % and %x$.
	- A data corruption bug when using %B with printf -v varname.
	- A bug causing double evaluation of arithmetic expressions.

*	Fixed a bug where unset -f commandname, executed in a subshell, hides
	any built-in command by the same name for the duration of that subshell.
*	Fixed ${var/#/string} and ${var/%/string} (with anchored empty pattern)
	to work as on mksh, bash and zsh; these are no longer ineffective.
*	Fixed incorrect result of array slicing ${array[@]:offset:length} where
	length is a nested expansion involving an array.
*	Command names can now end in : as they can on other shells.
*	Fixed a spurious syntax error in compound assignments upon encountering
	a pair of repeated opening parentheses ((.
*	Fixed spurious syntax error in ${parameter:offset:length}: the
	arithmetic expressions offset and length may now contain the
	operators () & |.
*	Fixed a parsing bug in the declaration of .sh.math.* arithmetic
	functions.
*	Fixed nameref self-reference loop detection for more than two namerefs
*	Several improvements to the POSIX compatibility mode.
*	Many more minor and/or esoteric bugfixes.