Raised "The file '/usr/share/zoneinfo/timeconfig' does not start with the expected header." #64
Description
The Slackware Linux distribution includes a script named timeconfig inside the zoneinfo directory.
That file is not being excluded by #load_timezone_index: https://github.com/tzinfo/tzinfo/blob/master/lib/tzinfo/zoneinfo_data_source.rb#L344
So, when doing this:
TZInfo::Timezone.all.find_all {|tz| tz.current_period.abbreviation == :some_abbrev }will raise this error:
TZInfo::InvalidTimezoneIdentifier: The file '/usr/share/zoneinfo/timeconfig' does not start with the expected header.
from /home/gian/.rbenv/versions/2.3.0/gemsets/r/gems/tzinfo-1.2.2/lib/tzinfo/zoneinfo_data_source.rb:205:in `rescue in load_timezone_info'
from /home/gian/.rbenv/versions/2.3.0/gemsets/r/gems/tzinfo-1.2.2/lib/tzinfo/zoneinfo_data_source.rb:202:in `load_timezone_info'
from /home/gian/.rbenv/versions/2.3.0/gemsets/r/gems/tzinfo-1.2.2/lib/tzinfo/timezone.rb:92:in `get'
from /home/gian/.rbenv/versions/2.3.0/gemsets/r/gems/tzinfo-1.2.2/lib/tzinfo/timezone_proxy.rb:67:in `real_timezone'
from /home/gian/.rbenv/versions/2.3.0/gemsets/r/gems/tzinfo-1.2.2/lib/tzinfo/timezone_proxy.rb:30:in `period_for_utc'
from /home/gian/.rbenv/versions/2.3.0/gemsets/r/gems/tzinfo-1.2.2/lib/tzinfo/timezone.rb:549:in `current_period'
from (irb):12:in `block in irb_binding'
from (irb):12:in `each'
from (irb):12:in `find_all'
from (irb):12
from /home/gian/.rbenv/versions/2.3.0/bin/irb:11:in `<main>'
I can send a PR if you are ok to excluding that file. Thanks.