Fix typos in code comment and documentation
diff --git a/Modules/_io/bytesio.c b/Modules/_io/bytesio.c
index 82f3851..d575236 100644
--- a/Modules/_io/bytesio.c
+++ b/Modules/_io/bytesio.c
@@ -395,7 +395,7 @@
"readinto(bytearray) -> int. Read up to len(b) bytes into b.\n"
"\n"
"Returns number of bytes read (0 for EOF), or None if the object\n"
-"is set not to block as has no data to read.");
+"is set not to block and has no data to read.");
static PyObject *
bytesio_readinto(bytesio *self, PyObject *args)