info-xref-output-error
info-xref-output-error is a compiled Lisp function in `info-xref.el
'.
(info-xref-output-error FMT &rest ARGS)
Emit a `format'-ed error FMT+ARGS to the `info-xref-output-buffer'.
The error is attributed to `info-xref-filename' and the current
buffer's line and column of point.