Yes, I can reproduce this behaviour on CentOS 7. However, I am not really using a vt220 and therefore by setting TERM to vt220 I am lying to the system about which terminal I am using and it is therefore little surprise that the display is adversely affected.

If you really are using a vt220 then this sounds like a bug (and well done you for keeping such an ancient terminal in working order for so long). Otherwise, just set the TERM variable to the real terminal type you are actually using.

In reply to Re: vt220 causes perldoc to print 2 after headings by hippo
in thread vt220 causes perldoc to print 2 after headings by chengiz5

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