ex_getln: Fixes for some problems with getexmodeline()

Problems with line-input editing commands in Ex mode
('nvim -e' or 'Q' in normal mode):

CTRL_U: Only after the next keystroke the complete
        line change is shown if the indentation was
        not 0.

        :     asdfCTRL_U

CTRL_T: Memory reallocation with ga_grows() before a
        memmove(), but pointers into the memory are
        not updated.

        :set sw=40
        :CTRL_T
        ...

        Should complain about a memory error.

CTRL_D: Trying to reduce an indentation of 0.

        :set sw=1
        :CTRL_D

        Segfault

Helped-by: Scott Prager <splinterofchaos@gmail.com>

0 files changed, 0 insertions, 0 deletions