Problem description:

When a filename is specified on the commandline that contains %20, it seems the %20 is replaced by a space before trying to open a file (even though no file:// url is used, just a plain filename).

Steps to reproduce:
1. Create a file with %20 in it:
 $ touch foo%20bar.odt
2. Try to open it through the commandline:
 $ libreoffice 'foo%20bar.odt'
3. Libreoffice now shows an error message: "/tmp/foo bar.odt does not exist" (Not that /tmp is just the cwd when running these commands).

The following ways of opening the file do _not_ fail and work as expected:
 - When specifying an absolute path:
    $ libreoffice '/tmp/foo%20bar.odt'
 - When opening the file through File->Open...
 - When passing the filename urlencoded (i.e., encoding the % from %20 as %25):
    $ libreoffice 'foo%2520bar.odt'

Platform (if different from the browser): Debian wheezy
              
Browser: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.3) Gecko/20100101 Firefox/10.0.3 Iceweasel/10.0.3