Added missing single quote in error message

[Caleb-Irwin]

Without the extra quotation mark, you can not know if the first quotation mark is part of the problem or part of the error message. Issue: #569

[dustinsmith1024]

Thanks - If you fix the test I'll get this merged.

Summary of all failing tests
FAIL packages/parse/__tests__/CsvParsingStream.spec.ts
  ● CsvParserStream › should emit an error for malformed rows

    expect(received).toBe(expected) // Object.is equality

    Expected: "Parse Error: expected: ',' OR new line got: 'a'. at 'a   \", Las"
    Received: "Parse Error: expected: ',' OR new line got: 'a'. at 'a   \", Las'"

      47 |         stream
      48 |             .on('error', (err: Error) => {
    > 49 |                 expect(err.message).toBe(message);
         |                                     ^
      50 |                 if (!called) {
      51 |                     called = true;
      52 |                     resolve();

      at CsvParserStream.<anonymous> (packages/parse/__tests__/CsvParsingStream.spec.ts:49:37)
      at CsvParserStream.emit (packages/parse/src/CsvParserStream.ts:71:22)

[coveralls]

Pull Request Test Coverage Report for Build 553310070

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 96.063%

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Totals
Change from base Build 449487237:	0.0%
Covered Lines:	741
Relevant Lines:	757

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💛 - Coveralls