patch 7.4.1780
Problem:    Warnings reported by cppcheck.
Solution:   Fix the warnings. (Dominique Pelle)
diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
index 657c772..4ddfbe4 100644
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -335,9 +335,8 @@
 get_maxbacktrace_level(void)
 {
     char	*p, *q;
-    int		maxbacktrace = 1;
+    int		maxbacktrace = 0;
 
-    maxbacktrace = 0;
     if (sourcing_name != NULL)
     {
 	p = (char *)sourcing_name;