Fix role_tests.py system test

[andrew-ni]

@pandeys is there a ctot pipeline available to easily test this? or is there only manual testing?

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This change is 

[pandeys]

Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion (waiting on @andrew-ni and @pandeys)

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system_tests/role_tests.py, line 27 at r1 (raw file):

            self._config['vcd']['host'],
            self._config['vcd']['default_org_name'],
            Environment.get_username_for_role_in_test_org(CommonRoles.ORGANIZATION_ADMINISTRATOR),  # noqa: E501

Length is more than 80 characters.

[pandeys]

Reviewed 1 of 1 files at r1.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @andrew-ni)

[andrew-ni]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @pandeys)

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system_tests/role_tests.py, line 27 at r1 (raw file):

Previously, pandeys (SAURABH PANDEY) wrote…

Length is more than 80 characters.

the # noqa: E501 at the end makes this line an exception to rule E501, the line length rule, but i'll change it to conform