Dropdown selections are cut off, making them nonunique

[Vinod]

vinod@cartman:~ $ lsb_release -rd
Description: Ubuntu 15.04
Release: 15.04
vinod@cartman:~ $ apt-cache policy gnome-tweak-tool
gnome-tweak-tool:
  Installed: 3.14.2-2
  Candidate: 3.14.2-2
  Version table:
 *** 3.14.2-2 0
        500 http://us.archive.ubuntu.com/ubuntu/ vivid/universe amd64 Packages
        100 /var/lib/dpkg/status

In section 'Typing', in the preference menu for 'Caps Lock key behavior', the options are too long and when they are cut off, it is impossible to tell the difference between options since the first few words of many options are the same.

Making the window horizontally larger does not change the size of the dropdowns at all.