Ticket #3093: fix sefault in case of run "mcedit relative/path/to/file".

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Merge branch '3093_keep_symlink_cwd_startup_fix'

* 3093_keep_symlink_cwd_startup_fix:
  Ticket #3093: fix sefault in case of run "mcedit relative/path/to/file".