Update mutt to version 2.2.9 / rev 111 via SR 1040160
    
    https://build.opensuse.org/request/show/1040160
    by user WernerFink + dimstar_suse
    - update to 2.2.9:
      * Document the <1234> key syntax for bind.
      * Fix non-printable keyname printing to use <octal> syntax.
      * Move AM_PATH_GPG_ERROR before AM_PATH_GPGME.
      * Update gpgme autoconf files to the latest versions.
      * Adjust manual concerning IMAP Fcc in batch mode.
      * Add explicit void to 0-parameter function definitions. (forwarded request 1039996 from dirkmueller)