Better error message when time is not parseable

Give the full path of the file that cannot be parsed so the user can locate it easier. Follow up the error message with helpful instructions: they can resolve the error by fixing the date or excluding the file or directory from being processed.
Add closing <code> tag.

Earlier PR omitted </code>. Thanks to @ivantsepp for spotting.
Merge pull request #1867 from pootsbook/patch-2
Update history to reflect merge of #1867
Merge pull request #1847 from schneems/schneems/better-bat-time-error
Update history to reflect merge of #1847