Bug#684257: libgtksourceview-3.0-0: gedit doesn't highlight python format string

Package: libgtksourceview-3.0-0
Version: 3.4.2-1
Severity: normal

Dear Maintainer,

gedit doesn't hightlight format strings like "%s" in the python code.

Step to reproduce:
1. launch gedit and write the following python code

 #!/usr/bin/python
 print "message: %s" % "test"

2. set "Python" to the current language on the status bar

%s should be recognized as format string, but it's colored pink, which means
normal string.

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 3.4-trunk-686-pae (SMP w/2 CPU cores)
Locale: LANG=ja_JP.UTF-8, LC_CTYPE=ja_JP.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libgtksourceview-3.0-0 depends on: