Fix typo in SSL_pending docs

unprocessed) and 0 otherwise. Note that it is possible for SSL_has_pending() to

unprocessed) and 0 otherwise. Note that it is possible for SSL_has_pending() to

return 1, and then a subsequent call to SSL_read() to return no data because the

return 1, and then a subsequent call to SSL_read() to return no data because the

unprocessed buffered data when processed yielded no application data (for

unprocessed buffered data when processed yielded no application data (for

example this can happend during renegotiation). It is also possible in this

example this can happen during renegotiation). It is also possible in this

scenario for SSL_has_pending() to continue to return 1 even after an SSL_read()

scenario for SSL_has_pending() to continue to return 1 even after an SSL_read()

call because the buffered and unprocessed data is not yet processable (e.g.

call because the buffered and unprocessed data is not yet processable (e.g.

because OpenSSL has only received a partial record so far).

because OpenSSL has only received a partial record so far).