Wait to send kill

[sargun]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 1322

• 57 of 81 (70.37%) changed or added relevant lines in 3 files are covered.
• 13 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.3%) to 23.153%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
executor/mock/jobrunner.go	0	1	0.0%
executor/drivers/titusdriver.go	8	10	80.0%
executor/runner/runner.go	49	70	70.0%

Files with Coverage Reduction	New Missed Lines	%
executor/drivers/titusdriver.go	2	69.23%
executor/runner/runner.go	11	56.91%

Totals
Change from base Build 1318:	0.3%
Covered Lines:	2087
Relevant Lines:	9014

---

💛 - Coveralls

[codecov]

Codecov Report

Merging #134 into master will increase coverage by 0.14%.
The diff coverage is 72%.

@@            Coverage Diff             @@
##           master     #134      +/-   ##
==========================================
+ Coverage   33.52%   33.67%   +0.14%     
==========================================
  Files          61       61              
  Lines        7094     7113      +19     
==========================================
+ Hits         2378     2395      +17     
+ Misses       4428     4427       -1     
- Partials      288      291       +3

Impacted Files	Coverage Δ
executor/mock/jobrunner.go	76.36% <0%> (-0.11%)	⬇️
executor/drivers/titusdriver.go	84% <100%> (-3.5%)	⬇️
executor/runner/runner.go	63.63% <69.23%> (+1.4%)	⬆️
api/netflix/titus/agent.pb.go	27.86% <0%> (+0.24%)	⬆️

[fabiokung]

probably unrelated to changes here, but statusMessage can be nil here if statusChan was closed. We should probably move this to right after the if !ok check