The WDL spec says we need to remove "common leading whitespace". For some reason, as noted in DataBiosphere/wdl-conformance-tests#34, we're apparently removing all whitespace equal to the first indentation level on any line it appears on. If lines dedent out from the leading line, we probably need to not remove any whitespace that isn't common to all the lines.

I think we might be doing this to work around chanzuckerberg/miniwdl#674, but we also might have come up with a better workaround now and can maybe change the behavior?

┆Issue is synchronized with this Jira Story
┆Issue Number: TOIL-1531