[tz] 1 s error in America/Adak and America/Nome

[Michael H Deckers]

    The switch from 1867-10-18 to 1867-10-17 in Alaska
    is incorrectly represented as a jump from 1867-10-18
    to 1867-10-17 + 00:00:01 h in the time scales for Adak
    and for Nome.

    Proposed corrections:
       -Zone America/Adak  12:13:21 - LMT 1867 Oct 18
       +Zone America/Adak  12:13:22 - LMT 1867 Oct 18
                          -11:46:38 - LMT 1900 Aug 20 12:00

       -Zone America/Nome  12:58:21 - LMT 1867 Oct 18
       +Zone America/Nome  12:58:22 - LMT 1867 Oct 18
                          -11:01:38 - LMT 1900 Aug 20 12:00

    Michael Deckers.