prompt, and stores it in B<buf>.
The maximum allowed size is given with B<length>, including the
terminating NUL byte.
-If B<verify> is non-zero, the password will be verified as well.
+If B<verify> is nonzero, the password will be verified as well.
UI_UTIL_read_pw() does the same as UI_UTIL_read_pw_string(), the
difference is that you can give it an external buffer B<buff> for the