Unix: Specify Ordinal comparison in TimeZoneInfo (#15739)
Unix: Specify Ordinal comparison in TimeZoneInfo (#15739)

The default behavior for StartsWith uses the current culture for
comparisons. These should be ordinal.
cshung/coreclr,ruben-ayrapetyan/coreclr,mmitche/coreclr,wtgodbe/coreclr,poizan42/coreclr,yizhang82/coreclr,yizhang82/coreclr,yizhang82/coreclr,wtgodbe/coreclr,cshung/coreclr,mmitche/coreclr,wtgodbe/coreclr,JosephTremoulet/coreclr,poizan42/coreclr,krk/coreclr,JosephTremoulet/coreclr,cshung/coreclr,krk/coreclr,yizhang82/coreclr,krk/coreclr,mmitche/coreclr,wtgodbe/coreclr,JosephTremoulet/coreclr,JosephTremoulet/coreclr,ruben-ayrapetyan/coreclr,poizan42/coreclr,cshung/coreclr,yizhang82/coreclr,ruben-ayrapetyan/coreclr,ruben-ayrapetyan/coreclr,krk/coreclr,krk/coreclr,poizan42/coreclr,JosephTremoulet/coreclr,ruben-ayrapetyan/coreclr,JosephTremoulet/coreclr,cshung/coreclr,krk/coreclr,ruben-ayrapetyan/coreclr,yizhang82/coreclr,mmitche/coreclr,wtgodbe/coreclr,wtgodbe/coreclr,poizan42/coreclr,mmitche/coreclr,mmitche/coreclr,poizan42/coreclr,cshung/coreclr