Avoid logWarning when environment file filename is empty [13302] #2365
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This PR avoids a
logWarning
that was issued wheneverDomainParticipantFactory::load_profiles()
was called for the first time without settingFASTDDS_ENVIRONMENT_FILE
environment variable or setting it to""
. It also adds a regression test and a test that checks that thelogWarning
is indeed issued ifFASTDDS_ENVIRONMENT_FILE
is set to an non-existing file.