Screen man page typo, but which?

[Warren Block]

>From 'man 4 screen':

  "For compatibility with the old pccons, the PC3 character sequences is
   also supported."

Should it be:
  "...the PC3 character sequences *are* also supported..."

or
  "...the PC3 character sequence is also supported..."

(My guess would be the former, but having never heard of "PC3 character
sequences" or even a singular one...)

Some reference for pccons should be included in SEE ALSO (if available).

-Warren Block * Rapid City, South Dakota USA