[tz] Fixed typos

[J William Piggott]

On 08/20/2017 12:17 AM, Ice Karma (J. Connell) 
7¿

 wrote:
> I suspect "meterological" in the first diff hunk should actually read
> "meteorological", rather than "metrological".

It seems unlikely that the Madras Observatory was making weather reports.
I imagine the author intended to write "astronomical" measurements.

However, since it is written as a direct quote the mistake should be
left as is, possibly with [sic]?

> 
> â¬
Ice Karma
>