Added 4-free_list.c

Author: Itsfoss0

0x12-singly_linked_lists/4-free_list.c

@@ -0,0 +1,17 @@
+#include "lists.h"
+/**
+ * free_list - frees a linked list
+ * @head: list_t list to be freed
+ */
+void free_list(list_t *head)
+{
+	list_t *tmp;
+
+	while (head)
+	{
+		tmp = head->next;
+		free(head->str);
+		free(head);
+		head = tmp;
+	}
+}