make psdocs fails with v4.9-rc3

[Jim Davis]

Running make psdocs on a Ubuntu 16.04 system fails with

Documentation/DocBook/Makefile:142: recipe for target
'Documentation/DocBook/kernel-hacking.ps' failed
make[1]: *** [Documentation/DocBook/kernel-hacking.ps] Error 9
Makefile:1442: recipe for target 'psdocs' failed
make: *** [psdocs] Error 2

possibly due to

[15.0.21]
! Undefined control sequence.
\Hy@wrapper@babel ...set@display@protect \edef \x
                                                  {#2}\@onelevel@sanitize \x...
l.8111 \endHeadPar{}
                    \endSeq{}\Node%
! Argument of \HyWrap@hyper@anchorstart has an extra }.
<inserted text>
                \par
l.8111 \endHeadPar{}
                    \endSeq{}\Node%
Runaway argument?

Though I wonder how many people still build the psdocs version...


-- 
Jim