title: ggplot2 ignoring locale category LC_TIME?
body: <p>I want to plot a time series with <code>ggplot()</code>, time line created with <code>strptime()</code>.</p>
  
  <p>So far ok: I am getting German abbreviations for the months on the time axis, my locale is set to <code>Sys.setlocale("LC_TIME"="de_DE.UTF-8")</code>. When I do <code>months()</code> with my data, they show up in German, too.</p>
  
  <p>Weird: When I set my locale to  <code>Sys.setlocale("LC_TIME"="en_GB.UTF-8")</code>, <code>months()</code> will give me English months BUT <code>ggplot()</code> will continue to have GERMAN abbreviations for months on the time-axis.</p>
  
  <p>I've tried some other categories of <code>Sys.setlocale()</code> but to no avail.</p>
  
  <p>Where does <code>ggplot()</code> take the information about which language to choose?</p>