errors: add missing ERR_ prefix on util.callbackify error
The FALSY_VALUE_REJECTION
error code added by https://github.com/nodejs/node/pull/12712 did not have the ERR_
prefix, nor was it added to the errors.md documentation. Add the prefix in for consistency.
https://github.com/nodejs/node/pull/12712 is a semver-minor but it has not yet been shipped in a release. If it had been shipped, then this PR would have had to been semver-major. This should land in a release the same time as af3aa682
/cc @refack @addaleax
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
util, errors