tls: don't "crash" on server close

TLS server section called Fatalf, while the normal section called Printf
on server close. Fatalf is now only called if the server wasn't shutdown
manually, e.g. when certificates are wrong. Same change was applied to
non-tls section, so crashes will actually occur when things like ports are occupied.

Fixes #343.

package-lock.json

@@ -15,7 +15,6 @@
         "any-date-parser": "^1.5.4",
         "browserslist": "^4.21.7",
         "cheerio": "^1.0.0-rc.12",
-        "esbuild": "^0.18.20",
         "fs-cheerio": "^3.0.0",
         "inline-source": "^8.0.2",
         "jsdom": "^22.1.0",