Make sure only one error will be sent to not-started Service

[Noremos]

This is a fix for #8430

[hvlad]

Unfortunately, this broke validation service (at least) ability to print formatted messages.

Current (wrong) output:

fbsvcmgr.exe inet://service_mgr action_repair dbname XXX.FDB rpr_validate_db rpr_full
Summary of validation errors

Correct output:

fbsvcmgr.exe inet://service_mgr action_repair dbname XXX.FDB rpr_validate_db rpr_full
Summary of validation errors
-       Number of record level warnings : 1

[Noremos]

Unfortunately, this broke validation service (at least) ability to print formatted messages.

Current (wrong) output:

fbsvcmgr.exe inet://service_mgr action_repair dbname XXX.FDB rpr_validate_db rpr_full
Summary of validation errors

Correct output:

fbsvcmgr.exe inet://service_mgr action_repair dbname XXX.FDB rpr_validate_db rpr_full
Summary of validation errors
-       Number of record level warnings : 1

Sad to hear. I'll look into the problem.

[Noremos]

Unfortunately, this broke validation service (at least) ability to print formatted messages.

Current (wrong) output:

fbsvcmgr.exe inet://service_mgr action_repair dbname XXX.FDB rpr_validate_db rpr_full
Summary of validation errors

Correct output:

fbsvcmgr.exe inet://service_mgr action_repair dbname XXX.FDB rpr_validate_db rpr_full
Summary of validation errors
-       Number of record level warnings : 1

Due to some real-life commitments, I have little free time, so my friend covered for me and made the fix: #8752