Log Message:
Update to 3.5.1

Upstream changes:
CHANGES IN R 3.5.1
BUG FIXES

    file("stdin") is no longer considered seekable.

    dput() and dump() are no longer truncating when options(deparse.max.lines = \ 
*) is set.

    Calls with an S3 class are no longer evaluated when printed, fixing part of \ 
PR#17398, thanks to a patch from Lionel Henry.

    Allow file argument of Rscript to include space even when it is first on the \ 
command line.

    callNextMethod() uses the generic from the environment of the calling \ 
method. Reported by Hervé Pagès with well documented examples.

    Compressed file connections are marked as blocking.

    optim(*, lower = c(-Inf, -Inf)) no longer warns (and switches the method), \ 
thanks to a suggestion by John Nash.

    predict(fm, newdata) is now correct also for models where the formula has \ 
terms such as splines::ns(..) or stats::poly(..), fixing PR#17414, based on a \ 
patch from Duncan Murdoch.

    simulate.lm(glm(*, gaussian(link = <non-default>))) has been \ 
corrected, fixing PR#17415 thanks to Alex Courtiol.

    unlist(x) no longer fails in some cases of nested empty lists. Reported by \ 
Steven Nydick.

    qr.coef(qr(<all 0, w/ colnames>)) now works. Reported by Kun Ren.

    The radix sort is robust to vectors with >1 billion elements (but long \ 
vectors are still unsupported). Thanks to Matt Dowle for the fix.

    Terminal connections (e.g., stdin) are no longer buffered. Fixes PR#17432.

    deparse(x), dput(x) and dump() now respect c()'s argument names recursive \ 
and use.names, e.g., for x <- setNames(0, "recursive"), thanks to \ 
Suharto Anggono's PR#17427.

    Unbuffered connections now work with encoding conversion. Reported by \ 
Stephen Berman.

    ‘.Renviron’ on Windows with Rgui is again by default searched for in \ 
user documents directory when invoked via the launcher icon. Reported by Jeroen \ 
Ooms.

    printCoefmat() now also works with explicit right=TRUE.

    print.noquote() now also works with explicit quote=FALSE.

    The default method for pairs(.., horInd=*, verInd=*) now gets the correct \ 
order, thanks to reports by Chris Andrews and Gerrit Eichner. Additionally, when \ 
horInd or verInd contain only a subset of variables, all the axes are labeled \ 
correctly now.

    agrep("..|..", .., fixed=FALSE) now matches when it should, thanks \ 
to a reminder by Andreas Kolter.

    str(ch) now works for more invalid multibyte strings.