fix duplicate Service name in a manifest

[hhsel]

Fixes #384

[fjogeleit]

Thanks for your contribution. Could you please sign your commit e.g.

git commit -m "fix duplicate Service name in a manifest" -s

to fulfill the DCO check.

[hhsel]

sorry I missed that, now corrected.

[coveralls]

Pull Request Test Coverage Report for Build 7347639115

Warning: This coverage report may be inaccurate.

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A quick fix for this PR: rebase it; your next report should be accurate.

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 91.999%

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Totals
Change from base Build 7220615642:	0.0%
Covered Lines:	4542
Relevant Lines:	4937

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💛 - Coveralls