Fix get env data method name in description

Summary:jest.getEnvData() is not available, jest.getTestEnvData() should be used instead.
Closes jestjs#823

Differential Revision: D3082131

fb-gh-sync-id: fa75d67e076abb80345410a4edccee46fa58e91c
shipit-source-id: fa75d67e076abb80345410a4edccee46fa58e91c

Author: eur00t

src/cli/processArgs.js

@@ -80,7 +80,7 @@ function processArgs() {
       testEnvData: {
         description: _wrapDesc(
           'A JSON object (string) that specifies data that will be made ' +
-          'available in the test environment (via jest.getEnvData())'
+          'available in the test environment (via jest.getTestEnvData())'
         ),
         type: 'string',
       },