#199 Incorrect version check on pdftex

[Anonymous]

! Package microtype Error: The kerning feature only works with pdftex 1.40
(microtype) or newer. Switching it off.
See the microtype package documentation for explanation.

$ pdftex --version
pdfTeX 3.141592653-2.6-1.40.22 (TeX Live 2022/dev/Debian)
kpathsea version 6.3.4/dev
Copyright 2021 Han The Thanh (pdfTeX) et al.
There is NO warranty. Redistribution of this software is
covered by the terms of both the pdfTeX copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the pdfTeX source.
Primary author of pdfTeX: Han The Thanh (pdfTeX) et al.
Compiled with libpng 1.6.37; using libpng 1.6.37
Compiled with zlib 1.2.11; using zlib 1.2.11
Compiled with xpdf version 4.03

$ xetex -version
XeTeX 3.141592653-2.6-0.999993 (TeX Live 2022/dev/Debian)
kpathsea version 6.3.4/dev
Copyright 2021 SIL International, Jonathan Kew and Khaled Hosny.
There is NO warranty. Redistribution of this software is
covered by the terms of both the XeTeX copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the XeTeX source.
Primary author of XeTeX: Jonathan Kew.
Compiled with ICU version 70.1; using 70.1
Compiled with zlib version 1.2.11; using 1.2.11
Compiled with FreeType2 version 2.11.1; using 2.11.1
Compiled with Graphite2 version 1.3.14; using 1.3.14
Compiled with HarfBuzz version 2.7.4; using 2.7.4
Compiled with libpng version 1.6.37; using 1.6.37
Compiled with pplib version v2.05 less toxic i hope
Compiled with fontconfig version 2.13.1; using 2.13.1