ci(1) on Linux
The text fe247a5675aa, as Debian 8 (Jessie) shipped it.
check in RCS revisions
Flags it lists
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-I -
-M -
-N -
-T -
-V -
-d -
-f -
-i -
-j -
-k -
-l -
-m -
-n -
-q -
-r -
-s -
-t -
-t-string -
-u -
-w -
-x -
-z