GUACAMOLE-1911: Fixed some typo mistakes ("interal", "stram").

src/libguac/guacamole/parser.h

@@ -143,7 +143,7 @@ void guac_parser_free(guac_parser* parser);
  * Reads a single instruction from the given guac_socket connection. This
  * may result in additional data being read from the guac_socket, stored
  * internally within a buffer for future parsing. Future calls to
- * guac_parser_read() will read from the interal buffer before reading
+ * guac_parser_read() will read from the internal buffer before reading
  * from the guac_socket. Data from the internal buffer can be removed
  * and used elsewhere through guac_parser_shift().
  *

src/libguac/guacamole/protocol.h

@@ -291,7 +291,7 @@ int guac_protocol_send_touch(guac_socket* socket, int id, int x, int y,
  *     socket directly.
  *
  * @param socket The guac_socket connection to use.
- * @param index The integer index of the stram to send the protocol
+ * @param index The integer index of the stream to send the protocol
  *              data over.
  * @param data A string containing protocol data, which must be UTF-8
  *             encoded and null-terminated.