added header

stdlib/bsearch.c

@@ -1,3 +1,14 @@
+/*
+ * bsearch - binary search!
+ *
+ * This header is a part of the FENIX C Library and is free software.
+ * You can redistribute and/or modify it subject to the terms of the
+ * Clumsy Wolf Public License v4. For more details, see the file COPYING.
+ *
+ * The FENIX C Library is distributed WITH NO WARRANTY WHATSOEVER. See
+ * The CWPL for more details.
+ */
+
 #include <stdlib.h>
 
 void * bsearch(const void * key, const void * base, size_t nel, size_t width,