Typo: longitude

Fixed typo in astraceroute.* files.

Signed-off-by: Kartik Mistry <kartik.mistry@gmail.com>
astraceroute.zsh: Remove duplicate entry

The entry for -q/--num-probes is duplicated in the zsh completion file
and the description of the first entry doesn't match the option's real
purpose, thus remove it.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Merge remote-tracking branch 'upstream/master'