ftp: Update license of ParseFTPList.h
ftp: Update license of ParseFTPList.h

This is follow-up of commit 6a260ff, which updated license for
ParseFTPList.c, but ParseFTPList.h should be updated also.

Synced from upstream commit:
http://hg.mozilla.org/mozilla-central/rev/f4157e8c4107
https://bugzilla.mozilla.org/show_bug.cgi?id=716478

https://bugzilla.gnome.org/show_bug.cgi?id=601583

gicmo/gvfs,gicmo/gvfs,gicmo/gvfs,gicmo/gvfs