Further libssl size_t-ify of reading

Writing still to be done

Reviewed-by: Rich Salz <rsalz@openssl.org>
diff --git a/ssl/ssl_err.c b/ssl/ssl_err.c
index c1a886a..eac03a4 100644
--- a/ssl/ssl_err.c
+++ b/ssl/ssl_err.c
@@ -181,7 +181,9 @@
     {ERR_FUNC(SSL_F_SSL_PARSE_SERVERHELLO_USE_SRTP_EXT),
      "ssl_parse_serverhello_use_srtp_ext"},
     {ERR_FUNC(SSL_F_SSL_PEEK), "SSL_peek"},
+    {ERR_FUNC(SSL_F_SSL_PEEK_EX), "SSL_peek_ex"},
     {ERR_FUNC(SSL_F_SSL_READ), "SSL_read"},
+    {ERR_FUNC(SSL_F_SSL_READ_EX), "SSL_read_ex"},
     {ERR_FUNC(SSL_F_SSL_SCAN_CLIENTHELLO_TLSEXT),
      "ssl_scan_clienthello_tlsext"},
     {ERR_FUNC(SSL_F_SSL_SCAN_SERVERHELLO_TLSEXT),