Time displayed in UTC if TZ-environment variable is set with file path

This bug is from a v8 bug on Linux

1. Select a timezone:
$ readlink -m /etc/localtime
/usr/share/zoneinfo/Europe/Berlin

2. Launch chromium with TZ-variable:
$ TZ=$(readlink -m /etc/localtime) chromium

3. Type into Javascript console:
> new Date()

What is the expected behavior?
Time displayed in local timezone:
Fri Nov 20 2020 08:22:53 GMT+0100 (Central European Standard Time)

What went wrong?
Time is displayed in UTC instead:
Fri Nov 20 2020 07:25:35 GMT+0000 (GMT)

not a regression , probably need some enhancement in common/putil.cpp