fig2dev fails for files with spaces in filename

[Lars Steinke]

Exporting a fig to pdf fails when it is referencing an eps picture with spaces in its filename:
Error: /undefinedfilename in (Standard)
Operand stack:

Execution stack:
   %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push
Dictionary stack:
   --dict:1172/1684(ro)(G)-- --dict:0/20(G)-- --dict:77/200(L)--
Current allocation mode is local
Last OS error: No such file or directory

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: transfig 1:3.2.5.d-3ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-21.32-generic 3.8.8
Uname: Linux 3.8.0-21-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Mon May 20 18:08:52 2013
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: transfig
UpgradeStatus: Upgraded to raring on 2013-04-29 (21 days ago)