Update docstring with missing line

[kt474]

Summary

Details and comments

Fixes #1481

[coveralls]

Pull Request Test Coverage Report for Build 8234578870

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall first build on minor-docstring-fix at 82.284%

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Totals
Change from base Build 8234553257:	82.3%
Covered Lines:	5764
Relevant Lines:	7005

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💛 - Coveralls

[woodsp-ibm]

@kt474 Your fix is this, which refers to backend before its selected/created - shouldn't pm be created after the backend line as I commented in the issue

+    pm = generate_preset_pass_manager(target=backend.target, optimization_level=1)

    backend = service.least_busy(operational=True, simulator=False)

[kt474]

@kt474 Your fix is this, which refers to backend before its selected/created - shouldn't pm be created after the backend line as I commented in the issue

+    pm = generate_preset_pass_manager(target=backend.target, optimization_level=1)

    backend = service.least_busy(operational=True, simulator=False)

 Sorry you're right, I shouldn't have merged this - i'll fix it now