Blank line inserted without error on "Sketch -> Import Library"

[JulienPalard]

I'm trying to compile with http://playground.arduino.cc/Main/LedControl, so:

• I downloaded the LedControl-1.0.6.zip archive from github
• Added it using "Sketch -> Import Library -> Add Library"
• Restarted Arduino because nobody knows
• Clicked on "Sketch -> Import Library -> LedControl" (happily present in the list)
• Got a new blank line without an error instead of an import statement (obviously won't compile).

I'm using arduino from Debian package:

$ apt-cache policy arduino
arduino:
  Installed: 2:1.0.5+dfsg2-4.1

[per1234]

Installed: 2:1.0.5+dfsg2-4.1

That's a very outdated and non-standard version of the Arduino IDE. Please try using the latest official version downloaded from http://www.arduino.cc/en/Main/Software