edit: Fix strange code

Based on the flow it looks like ptr could not be NULL here: if ptr_arg is NULL 
ptr is compl_leader, if compl_leader is NULL function exits. This also applies 
to Vim as far as I see.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/nvim/edit.c b/src/nvim/edit.c
index fe00027dec..1ca5424736 100644
--- a/src/nvim/edit.c
+++ b/src/nvim/edit.c
@@ -3427,10 +3427,11 @@ static void ins_compl_fixRedoBufForLeader(char_u *ptr_arg)
       len -= (*mb_head_off)(p, p + len);
     for (p += len; *p != NUL; mb_ptr_adv(p))
       AppendCharToRedobuff(K_BS);
-  } else
+  } else {
     len = 0;
-  if (ptr != NULL)
-    AppendToRedobuffLit(ptr + len, -1);
+  }
+  assert(ptr != NULL);
+  AppendToRedobuffLit(ptr + len, -1);
 }
 
 /*