Fix hang in cloudstack-sysvmadm script

[abh1sar]

Description

This PR fixes #12067

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• Build/CI
• Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 16.23%. Comparing base (56a39e6) to head (60ac19b).
⚠️ Report is 2 commits behind head on 4.20.

Additional details and impacted files

@@             Coverage Diff              @@
##               4.20   #12355      +/-   ##
============================================
- Coverage     16.23%   16.23%   -0.01%     
  Complexity    13378    13378              
============================================
  Files          5657     5657              
  Lines        498866   498875       +9     
  Branches      60545    60546       +1     
============================================
- Hits          81011    81008       -3     
- Misses       408821   408831      +10     
- Partials       9034     9036       +2     

Flag	Coverage Δ
uitests	4.00% <ø> (ø)
unittests	17.09% <ø> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.