Fix the docstrings of the capitalize method.
diff --git a/Objects/bytes_methods.c b/Objects/bytes_methods.c
index 215a1fa..b41b3d9 100644
--- a/Objects/bytes_methods.c
+++ b/Objects/bytes_methods.c
@@ -332,7 +332,8 @@
PyDoc_STRVAR_shared(_Py_capitalize__doc__,
"B.capitalize() -> copy of B\n\
\n\
-Return a copy of B with only its first character capitalized (ASCII).");
+Return a copy of B with only its first character capitalized (ASCII)\n\
+and the rest lower-cased.");
void
_Py_bytes_capitalize(char *result, char *s, Py_ssize_t len)