[bug-mailutils] missing mailutils-1.2/mh/README

[Devon Sean McCullough]

The file mailutils-1.2/README
...
    --enable-mh-utils

        Build a suite of MH utilities.  The GNU implementation of MH
        is primarily aiming to provide an interface between Mailutils
        and Emacs using mh-e module.  For more information, refer to
        files README and TODO in the mh subdirectory.
...
refers to nonexistent file mailutils-1.2/mh/README

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