Postgresql log still goes to old path after migration

https://bugzilla.redhat.com/show_bug.cgi?id=1080800
Check the existing postgresql on INT after server upgrade and gear
migrate.
The postgresql log still goes to old path. The new log file generated
but has zero length.
Fix bash brace expansion
Merge pull request #5079 from bparees/postgres_wrong_log

Merged by openshift-bot
Merge pull request #5085 from VojtechVitek/fix_bash_brace_expansion

Merged by openshift-bot