Description:
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When reloading the php-fpm daemon you would expect it to return an error code when the php-fpm initilization failed. However, we saw that the reload reported OK, but the php-fpm daemon still failed. 

Test script:
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- Use a configuration that results in a failure, i.e. php-fpm pool with socket that is already in use by another instance. 
- Reload the php-fpm daemon with "kill -USR2 <pid>"


Expected result:
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- Error exit code

Actual result:
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- OK exit code