man.th.extra2.suppress — Suppress extra2 part of header/footer?
If the value of man.th.extra2.suppress is
non-zero, then the extra2 part of the
.TH title line header/footer is suppressed.
The content of the extra2 field is usually
displayed in the left footer of the page and is typically "source"
data, often in the form
Name Version;
for example, "GTK+ 1.2" (from the gtk-options(7)
man page).
You can use the
refentry.source.name.suppress and
refentry.version.suppress parameters to
independently suppress the Name and
Version parts of the
extra2 field.