According to the diff, we know `:`, `g` and `Q` are removed from patched vim.
However, man still work in vim
type `K` on `diff` keyword to enter man mode.
type `!` for command mode in man
```
!ls /
bin boot dev etc flag go home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var vim vimshell.patch
------------------------
!cat /flag
TWCTF{the_man_with_the_vim}
```