Change addlicense to use current year

[pjanotti]

Change addlicense target to use the current year

[tigrannajaryan]

What if we remove the year completely?

[bogdandrutu]

We can use I think -y=""

[bogdandrutu]

Context: open-telemetry/community#113 (comment)

[codecov-io]

Codecov Report

Merging #604 into master will decrease coverage by 2.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #604      +/-   ##
==========================================
- Coverage   77.08%   75.07%   -2.02%     
==========================================
  Files         133      137       +4     
  Lines        8472     9144     +672     
==========================================
+ Hits         6531     6865     +334     
- Misses       1641     1966     +325     
- Partials      300      313      +13

Impacted Files	Coverage Δ
exporter/exporterhelper/tracehelper.go	93.33% <0%> (ø)	⬆️
translator/trace/oc_to_otlp.go	82.83% <0%> (ø)	⬆️
consumer/consumerdata/consumerdata.go
internal/data/metric.go	20.17% <0%> (ø)
internal/data/trace.go	35.81% <0%> (ø)
internal/data/common.go	100% <0%> (ø)
internal/data/resource.go	0% <0%> (ø)
translator/trace/otlp_to_oc.go	76.22% <0%> (ø)
translator/trace/spandata/protospan_to_spandata.go	60.81% <0%> (+0.69%)	⬆️
exporter/zipkinexporter/zipkin.go	79.31% <0%> (+2.83%)	⬆️

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[pjanotti]

Great, -y='' works, there is an extra blank space but that is ok.

[pjanotti]

@tigrannajaryan @bogdandrutu - after this one is merged I will remove the year from the existing ones.