cmd/snap-update-ns: tweak changePerform

[zyga]

As suggested by Chipaca

Signed-off-by: Zygmunt Krynicki zygmunt.krynicki@canonical.com

[codecov-io]

Codecov Report

Merging #4225 into master will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master   #4225      +/-   ##
=========================================
+ Coverage   75.87%   75.9%   +0.02%     
=========================================
  Files         440     440              
  Lines       38276   38304      +28     
=========================================
+ Hits        29042   29073      +31     
+ Misses       7220    7218       -2     
+ Partials     2014    2013       -1

Impacted Files	Coverage Δ
cmd/snap-update-ns/change.go	97.59% <ø> (+2.29%)	⬆️
interfaces/builtin/timeserver_control.go	100% <0%> (ø)	⬆️
interfaces/builtin/time_control.go	100% <0%> (ø)	⬆️
interfaces/builtin/timezone_control.go	100% <0%> (ø)	⬆️
cmd/snap-update-ns/bootstrap.go	90.56% <0%> (+4.2%)	⬆️

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[chipaca]

thank you

[chipaca]

er