vcut segmentation fault
I am forwarding [Debian-bug 818037](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=818037) from user Frank Heckenbach <f.heckenbach@fh-soft.de>. Original bug report:
```
Sorry for the brief description, but for what I can tell, that's
really it. I tried various cases, and vcut always seems to just
segfault. Here's one example:
% head -c 500000 /dev/zero | oggenc -Q -r -o 1.ogg -
% vcut 1.ogg 2.ogg 3.ogg +1
Processing: Cutting at 1,000000 seconds
Segmentation fault
Tried on both i386 and amd64.
It did work correctly under squeeze and wheezy.
```
I am going to provide a patch down in the comments.
issue