Add failing test case for a word longer than line limit

[tremby]

An input string with a word longer than the line length limit, after at least one space, causes an exception to be thrown.

> require('hanging-indent')('a bbbbbbbbbbbbbbbbbbbbbbbbbbbbc', 2, 30);
RangeError: Maximum call stack size exceeded
    at Array.reverse (native)
    at hangingIndent (/tmp/test/node_modules/hanging-indent/index.js:21:57)
    at hangingIndent (/tmp/test/node_modules/hanging-indent/index.js:27:12)
    at hangingIndent (/tmp/test/node_modules/hanging-indent/index.js:27:12)
    at hangingIndent (/tmp/test/node_modules/hanging-indent/index.js:27:12)
    at hangingIndent (/tmp/test/node_modules/hanging-indent/index.js:27:12)
    at hangingIndent (/tmp/test/node_modules/hanging-indent/index.js:27:12)
    at hangingIndent (/tmp/test/node_modules/hanging-indent/index.js:27:12)
    at hangingIndent (/tmp/test/node_modules/hanging-indent/index.js:27:12)
    at hangingIndent (/tmp/test/node_modules/hanging-indent/index.js:27:12)
>

[coveralls]

Coverage remained the same at 100.0% when pulling c73efa3 on tremby:long-word-test-case into 61043fb on codekirei:master.

[coveralls]

Coverage remained the same at 100.0% when pulling c73efa3 on tremby:long-word-test-case into 61043fb on codekirei:master.