[XeTeX] Problem with ifpdf switch

[John Was]

Hello

On acquiring a new PC I decided to install the latest TeXLive (previously I
was on the 2013 version).  I use plain XeTeX.  To my surprise, the first
page now has at the top the text:

ifpdf [2016/04/04 v3.0 Provides the ifpdf switch]

See the attached one-page PDF.

Below I give some lines from my log file - it's the last line that is of
interest, viz.:

[]\tenrm ifpdf [2016/04/04 v3.0 Pro-vides the if-pdf switch

Where has that come from, and, more importantly, how do I get rid of it in
the output?


(c:/texlive/2020/texmf-dist/tex/eplain/eplain.tex)
\notenumber=\count129
\strutboxone=\box29
\strutboxtwo=\box30
\maxonelinenote=\dimen119
\availablespace=\dimen120
\adjustskipamount=\dimen121
\firstpageofarticle=\toks51
\lastpageofarticle=\toks52
\fillernumber=\toks53
\excelfillernumber=\toks54
\firstpagenumber=\count130
\lastpagenumber=\count131
\contractednumber=\count132
\startpagenumber=\count133
\itemstartnumber=\toks55
\leftheadlinetext=\toks56
\untrimmedhorizontal=\dimen122
\untrimmedvertical=\dimen123
\backmargin=\dimen124
\topmargin=\dimen125
\bottommargin=\dimen126
\foredgemargin=\dimen127
\varwidtha=\dimen128
\varwidthb=\dimen129
\varwidthc=\dimen130
\headertext=\toks57
\referencenumber=\toks58
\greeting=\toks59
\issuenumber=\toks60
\issueletter=\toks61
 (./MLRHYPH.TEX)
(d:/TEXFILES/TEXINPUT/TEXDOCS/UNIDEFS/UHYPHENS.TEX)) (./MLROPENS.TEX)
Overfull \hbox (567.27563pt too wide) in paragraph at lines 42--5
[]\tenrm ifpdf [2016/04/04 v3.0 Pro-vides the if-pdf switch]



Best wishes

John Waś 🇪🇺


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