return "Force subshell execution" option (-r in comand line)

[asy]

Hello.

This can be found in git log:

commit 915136719d4bf5c4ceb383b3629e62086f5bfdd7
Author: Pavel Roskin <proski@…>
Date: Sat Mar 22 05:28:08 2003 +0000

• command.c (enter): Check subshell state early and return if inactive before clearing the command line.
• main.c (force_subshell_execution): Remove magic, unusable, undocumented command line option "-r".

Or in old text changelog:

2003-03-22 Adam Byrtek <alpha@…>

• command.c (enter): Check subshell state early and return if inactive before clearing the command line.
• main.c (force_subshell_execution): Remove magic, unusable, undocumented command line option "-r".

What do you think about resurrection this ? This option is supported in mc package in AltLinux? now: ​http://www.sisyphus.ru/ru/srpm/Sisyphus/mc/patches/4

[asy]

Example of behavour with -r option:

1. run "cat" from mc's command line
2. press Ctrl+o (return to pannels)
3. select any file described in mc.ext (for example foo.avi)
4. press Enter

behavour: mc will to run "mplayer foo.avi"

without "-r" mc will to show the message "The shell is already running a command"