Comment 1 for bug 771727

As it turns out, it's not the split() that does it. LpQueryDistro deliberately doesn't even return the empty pocket suffix.

Disaster strikes in this bit of shell script that I converted incorrectly:

# Combine all supported series with all pocket suffixes to build the list
# of suites for which we will generate/update Contents.gz.
new_suites=
for suite in $suites; do
  new_suites="${new_suites:+$new_suites }$suite"
  for pocket_suffix in $pocket_suffixes; do
    if [ -d "$ARCHIVE/ubuntu/dists/$suite$pocket_suffix" ]; then
      new_suites="$new_suites $suite$pocket_suffix"
    fi
  done
done
suites="$new_suites"

This adds the $suite to $new_suites, and then for each non-empty pocket suffix adds $suite$pocket_suffix to $new_suites.