Date: Tue, 15 Nov 2016 19:43:55 +0100
From: Simen Heggestøyl <simenheg@gmail.com>
Cc: 24935@debbugs.gnu.org
"ROT13 encrypt OBJECT, a buffer or string.
Return the ROT13 encrypted string when OBJECT is a string,
ignoring START and END. ROT13 encrypt the region between
positions START and END when OBJECT is a buffer; all three
arguments are then required."
It sounds strange to describe first the use case where the arguments
are ignored. I suggest this instead:
ROT13 encrypt OBJECT, a buffer or string.
If OBJECT is a buffer, encrypt the region between START and END.
If OBJECT is a string, encrypt it in its entirety, ignoring START
and END, and return the encrypted string.