This reverts commit b948423a80.

Without this, there is a conflict with using the `-u` option (use selection).
After copying selected files, the selection is intact and if the user issues
a deletion next, the source files (meant for copying) are deleted.

There's a specific problem with control in the hands of random jokers - it's abused.

Ref: https://en.wikipedia.org/wiki/Wikipedia:Articles_for_deletion/Nnn_(file_manager)

* Allow absolute paths returned by fzf in fzcd plugin

* Fix issue with POSIX syntax

* Add descriptive comment

* Add comment

* Remove description

* Add new line at the end of the file

Co-authored-by: Jan Meischner <jan.meischner@verimi.com>

Co-authored-by: akimdi <akimdi@users.noreply.github.com>

This reverts commit 37e5e6189a.

If char is unsigned (as on ARM) subtracting a larger number would
result in a wrap around, not a negative value.

  src/nnn.c: In function 'readpipe':
  src/nnn.c:4325:11: warning: comparison is always false due to limited
  range of data type [-Wtype-limits]

     if (ctx < 0 || ctx > CTX_MAX)
             ^