date issues with YYYYMMDD/YYMMDD date format and relative offset

[Ondřej Vašík]

Hello,
date command has some troubles with YYYYMMDD date format.
When you try 'date -d "20050101 +1 day"' (or whatever 
relative offset), you will get invalid date because 
of conflicts in translation tables. Nearly same command
date -d "20050101 UTC +1 day" is working correctly with
current version of coreutils.

Solution is easy - to add hybrid date/time/relative option 
to getdate.y as I did in attached patch. Should be 
harmless for the rest of date formats. I know that
this YYYYMMDD format is not recommended in any man/info 
pages, but is still considered valid, so should be 
handled correctly. Same is corrected for time 
hhmm/hh format.
(for details you can check redhat bugzilla #377781)


Greetings,
         Ondrej Vasik

coreutils-getdateYYYYMMDD.patch
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