Removed quotes in joined_paired_ends loop
Removed quotes in joined_paired_ends loop

The quoting mucks up the assignment - i takes the entire list as a
single value, instead of looping through them one at a time.

Also a typo die -> dir.

molbiodiv/meta-barcoding-dual-indexing,iimog/meta-barcoding-dual-indexing,iimog/meta-barcoding-dual-indexing,molbiodiv/meta-barcoding-dual-indexing,iimog/meta-barcoding-dual-indexing,molbiodiv/meta-barcoding-dual-indexing