[1.7.x] Fixed #22368 -- clarified connecting to Oracle DB using service name
[1.7.x] Fixed #22368 -- clarified connecting to Oracle DB using service name

Used the official terminology listed in
http://docs.oracle.com/cd/B19306_01/network.102/b14212/glossary.htm#i997309

Thanks michael.cherkasov for the report.

Backport of bfac6bef83 from master

oscaro/django,jyotsna1820/django,oscaro/django,jyotsna1820/django,jyotsna1820/django,oscaro/django,oscaro/django,jyotsna1820/django