I've just published fixes for errata for SRFI 151.  They
have been approved by the author, John Cowan, so I have
incorporated them into the public document and added a note
to the Status section.

Thanks to Shiro Kawai for reporting these.

Here's a description:

  - The examples under bit-field-any? and bit-field-every?
    showed any-bit-set? and every-bit-set?.

  - test-227 in chibi-test.scm and chicken-test.scm tested
    (bits->list -1 128), but the final srfi didn't allow
    negative integers in the first argument of bits->list.

Here's the diff:

  <https://github.com/scheme-requests-for-implementation/srfi-151/commit/7fd6ceb07b92272fb12fb59d8b208ae586b8e95f>

— SRFI Editor