[Rd] Align legend title wish remainder (PR#13415)

[gregor.gorjanc at bfro.uni-lj.si]

Full_Name: Gregor Gorjanc
Version: 2.8.0 and above
OS: generic
Submission from: (NULL) (82.192.44.219)


This is just a remainder for a wish to align legend title as 
reported and "solved" at

https://stat.ethz.ch/pipermail/r-devel/2008-December/051642.html

Thanks!

Regards, Gregor