If nil, continuation lines are wrapped at the right screen edge.
This variable has no effect if long lines are truncated (see
-`truncate-lines' and `truncate-partial-width-windows'). */);
+`truncate-lines' and `truncate-partial-width-windows'). If you use
+word-wrapping, you might want to reduce the value of
+`truncate-partial-width-windows', since wrapping can make text readable
+in narrower windows. */);
#ifdef DOS_NT
DEFVAR_PER_BUFFER ("buffer-file-type", ¤t_buffer->buffer_file_type,