I see two possibilities how to fix this:
1) Replace "$pid=open2(*IN, *OUT, 'tidy -quiet -asxhtml -utf8 --show-body-only yes -
-show-warnings no --tidy-mark no');" by "$pid=open2(*IN, *OUT, 'tidy -quiet -asxhtml -utf8 --show-body-only yes -
I see two possibilities how to fix this:
1) Replace "$pid=open2(*IN, *OUT, 'tidy -quiet -asxhtml -utf8 --show-body-only yes -
-show-warnings no --tidy-mark no');" by "$pid=open2(*IN, *OUT, 'tidy -quiet -asxhtml -utf8 --show-body-only yes -