Windows event log errors returned by publisher.Open

[jsirianni]

Description of Changes

There is one spot in windows event where we do not log the error

This results in: Failed to open publisher: %s" when calls to publisher.Open return an error.

{"level":"error","ts":"2021-06-21T11:25:11.485-0700","msg":"Failed to open publisher: %s","operator_id":"$.9e96dcdf-012e-4636-8235-7c11f48e9966.application_event_input","operator_type":"windows_eventlog_input"}

Please check that the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• Add a changelog entry (for non-trivial bug fixes / features)
• CI passes

[codecov]

Codecov Report

Merging #334 (6974e3a) into master (762bf14) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #334      +/-   ##
==========================================
- Coverage   69.67%   69.61%   -0.06%     
==========================================
  Files         123      123              
  Lines        6489     6489              
==========================================
- Hits         4521     4517       -4     
- Misses       1494     1499       +5     
+ Partials      474      473       -1     

Impacted Files	Coverage Δ
operator/builtin/input/file/file.go	75.86% <0.00%> (-2.76%)	⬇️
operator/builtin/output/forward/forward.go	55.07% <0.00%> (-1.45%)	⬇️
operator/builtin/output/newrelic/newrelic.go	71.96% <0.00%> (+0.93%)	⬆️

---

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[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.3448383	-0.24142301	127.86571	+0.76872253
1	5000	4.793261	+0.2760296	138.4053	+0.43170166
1	10000	9.327618	+0.06888485	146.89642	+1.6436005
1	50000	50.25919	+3.310112	175.80118	+1.8846893
1	100000	98.42004	-1.9034729	242.78206	+1.2533722
10	100	1.8621321	-0.051759124	134.09805	+3.1601562
10	500	6.0345683	-0.18964052	141.33647	+1.618927
10	1000	11.586237	-0.46560764	147.69478	+0.80604553
10	5000	49.776756	+0.08617401	176.4441	-0.45796204
10	10000	106.203545	+6.0505295	230.0555	+5.225479