cppcheck-htmlreport: print the cppcheck version in every footer

missed in 2d4bae0

Signed-off-by: Toralf Förster <toralf.foerster@gmx.de>
cppcheck-htmlreport: print the cppcheck version in every footer

missed in 2d4bae0

Signed-off-by: Toralf Förster <toralf.foerster@gmx.de>
Merge branch 'html' of https://github.com/toralf/cppcheck into html
Merge pull request #345 from toralf/html

cppcheck-htmlreport: print the cppcheck version in every footer