[Patch] RFE new API - gettimezone

[P J P]

   Hello,

WRT BZ#1077902 [1], please find attached herein, a patch to add the new API - gettimezone(),
which returns local time zone information in the form of a POSIX TZ environment variable string.
The API reads the '/etc/localtime' file to fetch the said information.

Could someone please help me with the patch review and other comments that could be helpful for the development of this API.
--
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1077902#c2 


Thank you. 

---
Regards
   -Prasad
http://feedmug.com
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