Remove trailing spaces from command name

[narrieta]

/proc//comm may include trailing newlines, which need to be removed.

[codecov]

Codecov Report

Merging #2296 (9e08049) into develop (1e03ab5) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop    #2296      +/-   ##
===========================================
+ Coverage    70.64%   70.69%   +0.04%     
===========================================
  Files           96       96              
  Lines        13951    13948       -3     
  Branches      1997     1996       -1     
===========================================
+ Hits          9856     9860       +4     
+ Misses        3655     3652       -3     
+ Partials       440      436       -4     

Impacted Files	Coverage Δ
azurelinuxagent/common/cgroupconfigurator.py	70.41% <100.00%> (+0.30%)	⬆️
azurelinuxagent/ga/collect_telemetry_events.py	91.43% <0.00%> (+1.71%)	⬆️

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