patch 7.4.2141
Problem:    Coverity reports bogus NULL check.
Solution:   When checking for a variable in the funccal scope don't pass the
            varname.
diff --git a/src/proto/userfunc.pro b/src/proto/userfunc.pro
index 3988683..25620f1 100644
--- a/src/proto/userfunc.pro
+++ b/src/proto/userfunc.pro
@@ -50,8 +50,8 @@
 void restore_current_funccal(void *f);
 void list_func_vars(int *first);
 dict_T *get_current_funccal_dict(hashtab_T *ht);
-hashitem_T *find_hi_in_scoped_ht(char_u *name, char_u **varname, hashtab_T **pht);
-dictitem_T *find_var_in_scoped_ht(char_u *name, char_u **varname, int no_autoload);
+hashitem_T *find_hi_in_scoped_ht(char_u *name, hashtab_T **pht);
+dictitem_T *find_var_in_scoped_ht(char_u *name, int no_autoload);
 int set_ref_in_previous_funccal(int copyID);
 int set_ref_in_call_stack(int copyID);
 int set_ref_in_func_args(int copyID);