pgAdmin 4 commit: PEP8 fixes for the server and server group modules.

PEP8 fixes for the server and server group modules.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=055f7abc9ed0f3b547cf1a93fac84ff3abdd14e1
Author: Harshal Dhumal <harshal.dhumal@enterprisedb.com>

Modified Files
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web/pgadmin/browser/server_groups/__init__.py      |   8 +-
.../browser/server_groups/servers/__init__.py      | 136 ++++++++++++---------
web/pgadmin/browser/server_groups/servers/gpdb.py  |   1 -
web/pgadmin/browser/server_groups/servers/types.py |   4 +-
web/pgadmin/browser/server_groups/servers/utils.py |   9 +-
5 files changed, 94 insertions(+), 64 deletions(-)