infotocap: unexpected character found 'a'

[Sven Joachim]

Another rather big problem in infotocap, it does not like any filenames
at all:

,----
| $ infotocap -V
| ncurses 6.1.20191005
| $ infotocap /dev/null
| infotocap: unexpected character found '/'
`----

At first I thought infotocap did not like the absolute filename, but it
does not actually matter what kind of file I feed it:

,----
| $ file alpha beta gamma
| alpha: ASCII text
| beta:  empty
| gamma: cannot open `gamma' (No such file or directory)
| $ for file in alpha beta gamma; do infotocap $file; done
| infotocap: unexpected character found 'a'
| infotocap: unexpected character found 'b'
| infotocap: unexpected character found 'g'
`----

Huh?!

Cheers,
       Sven