vim-patch:7.4.1567

Problem:    Crash in assert_fails().
Solution:   Check for NULL. (Dominique Pelle)  Add a test.

1abb502635

src/nvim/eval.c

@@ -7688,7 +7688,8 @@ static void f_assert_fails(typval_T *argvars, typval_T *rettv)
     char_u buf[NUMBUFLEN];
     char *error = (char *)get_tv_string_buf_chk(&argvars[1], buf);
 
-    if (strstr((char *)vimvars[VV_ERRMSG].vv_str, error) == NULL) {
+    if (error == NULL
+        || strstr((char *)vimvars[VV_ERRMSG].vv_str, error) == NULL) {
       prepare_assert_error(&ga);
       fill_assert_error(&ga, &argvars[2], NULL, &argvars[1],
                         &vimvars[VV_ERRMSG].vv_tv);

src/nvim/version.c

@@ -119,7 +119,7 @@ static int included_patches[] = {
   1570,
   1569,
   1568,
-  // 1567,
+  1567,
   // 1566 NA
   // 1565,
   // 1564,