Fixed mismatch of preview in the pattern of a particular

hoogle command because the output is extra message when you search for
a particular query, the preview does not match the candidate.
For this reason, it is skipped extra message.

The following is a specific pattern and its source.

https://github.com/ndmitchell/hoogle/blob/master/src/Hoogle/Query/Suggest.hs

case 1: Search Google

```output:
Google rocks!
```

case 2: Search ?oogle (ex. hoogle)

```output:
Can't think of anything more interesting to search for?
```

case 3: Suggestion message of "Did you mean: " (ex. search "IO String")

```output:
Did you mean: :: IO String
```

case 4: None search result (ex. search "foo-bar-baz")

```output:
No results found
```

case 5: Conbination of case 2 and case 4 (ex. coogle)

```output:
Can't think of anything more interesting to search for?
No results found
```