Avoid false out of bounds reports.

* cipher/md.c: add explicit type cast from char [1] to char *.
--

Fixes four UBSan error reports while running tests which look like:

cipher/md.c:671:42: runtime error: index 400 out of bounds for type
'char [1]'
    #0 0x7f83c43fe90e in md_final cipher/md.c:671:42
    #1 0x7f83c43fceb7 in _gcry_md_ctl cipher/md.c:781:7
    #2 0x7f83c44046fa in _gcry_md_read cipher/md.c:868:3

Signed-off-by: Peter Wu <peter@lekensteyn.nl>

0 files changed, 0 insertions, 0 deletions