image-dpi and image-quality must be passed as integers #251
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According to wkhtmltopdf documentation, the values for
--image-dpi
and--image-quality
options must be passed as integers. If they are not they simply get ignored. So far theescapeshellarg
function has been used to escape the shell arguments, which adds single quotes around the value.This patch adds a test for such case and implements a fix.