Use a string multiplier instead of 59 repetitions

A recently added test case added a long string of repeated 1's
which required a #noqa flag. A string multiplier represents the
same thing in a much shorter fashion.

Change-Id: I2f4d5568b3e132781fc51bd2e9b3efd44c549689
Merge "Use a string multiplier instead of 59 repetitions"