Make binascii.hexlify() use s# for its arguments instead of t# to actually
match its documentation stating it accepts any read-only buffer.
diff --git a/Modules/binascii.c b/Modules/binascii.c
index 71a9624..3b2c8b2 100644
--- a/Modules/binascii.c
+++ b/Modules/binascii.c
@@ -909,7 +909,7 @@
 	char* retbuf;
 	Py_ssize_t i, j;
 
-	if (!PyArg_ParseTuple(args, "t#:b2a_hex", &argbuf, &arglen))
+	if (!PyArg_ParseTuple(args, "s#:b2a_hex", &argbuf, &arglen))
 		return NULL;
 
 	retval = PyString_FromStringAndSize(NULL, arglen*2);