Some fatal errors are not boldfaced. When I tried to install MediaWiki, I saw three bold warnings, but I had to really search for the message config-brokenlibxml, which caused the installation to fail but didn't attract attention. Apart from this message I found config-no-db, config-xml-bad and config-using531, which seem to have the same problem. (But I didn't view these in context.)

Version: 1.17.x
Severity: normal