replace strncpy + setting end of array to NUL with strlcpy

bin/tests/system/dlzexternal/driver.c

@@ -128,14 +128,11 @@ add_name(struct dlz_example_data *state, struct record *list,
 	    strlen(data) >= sizeof(list[i].data))
 		return (ISC_R_NOSPACE);
 
-	strncpy(list[i].name, name, sizeof(list[i].name));
-	list[i].name[sizeof(list[i].name) - 1] = '\0';
+	strlcpy(list[i].name, name, sizeof(list[i].name));
 
-	strncpy(list[i].type, type, sizeof(list[i].type));
-	list[i].type[sizeof(list[i].type) - 1] = '\0';
+	strlcpy(list[i].type, type, sizeof(list[i].type));
 
-	strncpy(list[i].data, data, sizeof(list[i].data));
-	list[i].data[sizeof(list[i].data) - 1] = '\0';
+	strlcpy(list[i].data, data, sizeof(list[i].data));
 
 	list[i].ttl = ttl;