Tcl_SetChannelError(3tcl) on Linux
The text c662f5e98a72, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it. The page shows this text now.
functions to create/intercept Tcl errors by channel drivers.