Make nudnik friendlier and fix the indenting mess

My only concern is that people will try to treat nudnik as a real person when no one else is around, and then get offended as to why they're being ignored. Consider this exchange:

```
user: hi, I'm stuck on ERF123-456
nudnik: Hmmm, that error looks familiar. Maybe this will help: <url>
user: thanks nudnik but i already tried that, do you have any other suggestions?
<silence>
```

I approve of tripping off the title etc in the case of an ERF page as it's mostly redundant, but perhaps we can keep the formality? Something like "ERF12-3456 has a wiki page - see <url>" or something?