Add _recognized_file_types(); defer error for unrecognized restore.
Add _recognized_file_types(); defer error for unrecognized restore.

Defer an error if an unrecognized file type is encountered during
metadata restoration -- whether during path creation
(i.e. --start-extract) or metadata application
(i.e. --finish-extract).

Signed-off-by: Rob Browning <1dc5917c2adeeba13d1ef33dbb40691a1b67cc65@defaultvalue.org>

jbaber/bup,ToxicFrog/bup,jbaber/bup,tjanez/bup,pombredanne/bup,pombredanne/bup,jbaber/bup,apenwarr/bup,pombredanne/bup,pombredanne/bup,tjanez/bup,pombredanne/bup,gevaerts/bup,mhoeher/bup,jbaber/bup,ToxicFrog/bup,ToxicFrog/bup,apenwarr/bup,ToxicFrog/bup,tjanez/bup,apenwarr/bup,gevaerts/bup,mhoeher/bup,apenwarr/bup,jbaber/bup,ToxicFrog/bup,mhoeher/bup,jbaber/bup,gevaerts/bup,gevaerts/bup,mhoeher/bup,gevaerts/bup,mhoeher/bup,pombredanne/bup,tjanez/bup,mhoeher/bup,tjanez/bup,tjanez/bup