[PATCH 1/5 resend] riched20: Check para before use in ME_PrevRun.

[Jactry Zeng]

Superseded patch 144695.

Signed-off-by: Jactry Zeng <jzeng(a)codeweavers.com>
---
  dlls/riched20/list.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)