Comment 2 for bug 34369

 postgresql-common (44ubuntu1) dapper; urgency=low
 .
   * Merge bug fixes from Debian (the upper half of the changes in 44 were
     already present in Ubuntu):
     - Fixes taint error in pg_maintenance and PgCommon.pm. (Malone #34369)
     - postinst only restarts clusters if it is really necessary.
       (Malone #34270)
 .
 postgresql-common (44) unstable; urgency=low
 .
   * PgCommon.pm, change_ugid(): Fix the order of $< and $> assignment so that
     we don't trash the saved uid and can switch back later. This allows us to
     make use of this function in the test suite, too.
   * t/TestLib.pm: Use change_ugid() in exec_as() get auxiliary groups. This
     makes the test suite work with SSL keys which are only readable by
     ssl-cert group members.
   * pg_ctlcluster: Untaint PID value read from autovacuum.pid.
   * t/020_create_sql_remove.t: Add check that SSL is automatically enabled on
     >= 8.0 clusters.
   * pg_createcluster: Improve SSL key access check to be more robust.
   * Enable taint checking in all programs and fix the resulting breakage.
   * PgCommon.pm: Replace backticks program calling with proper |- pipe
     opening to avoid intermediate shell and argument quoting problems.
   * testsuite: Only execute tests ending with .t.
   * Add t/100_upgrade_scripts.t: Test upgrade scripts.
   * run-upgrade-scripts:
     - Filter out the 'postgres' database on 8.1+ clusters.
     - Temporarily enable connections to databases which disable them.
     - Execute scripts in asciibetical order.
   * debian/postgresql-common.postinst: Ensure that /var/lib/postgresql is
     owned by postgres:postgres. (https://launchpad.net/bugs/32696)
   * t/*.t: Remove hashbang lines to avoid lintian warnings.
   * debian/postgresql-common.postinst: Only restart servers if upgrading from
     a version with important pg_ctlcluster changes in between (currently,
     prior than 40).
   * t/090_multicluster.t: Add test for user_clusters behaviour.
   * PgCommon.pm, user_cluster_map(): Print a meaningful error message instead
     of 'invalid symbolic link' gibberish if a cluster in user_clusters or
     .postgresqlrc does not exist.
   * pg_ctlcluster:
     - Exit with code 2 if the cluster is already (start)/not (stop) running
       and fix error messages to be consistent. (See bug #355004)
     - Document the exit codes in the POD.
   * debian/init.d-functions:
     - Use log_daemon_msg/log_progress_msg to show all clusters of a particular
       version on the same line, to better conform to standards.
     - Call restart instead of stop/start.
     - Do not fail if cluster is already (start)/not (stop) running to conform
       to LSB.
     - Thanks to Peter Eisentraut for the original patch.
     - Closes: #355004