[tz] DST changes in Hungary (full historical revision)

[Michael H Deckers]

    On 2020-10-11 17:11, Paul Eggert proposed the change:


> +# [URL missing for 1949 DST start]
....
> -# 
> https://library.hungaricana.hu/hu/view/DTT_KOZL_TanacsokKozlonye_1980/?pg=1227
> +# [URLs missing for 1980 DST]
>
    Géza Nyáry has provided a source for the start of summer time in 1949:

https://library.hungaricana.hu/hu/view/KeletMagyarorszag_1949_03/?pg=96

    and for both 1980 transitions:

https://library.hungaricana.hu/hu/view/DTT_KOZL_TanacsokKozlonye_1980/?pg=189

    Michael Deckers.