Bug#950803: shnsplit still won't split 24bit files

[Eussoult]

I'm still having this bug, despite having compiled the program from
source with the fixing commit.

"shnsplit: warning: unsupported format 0xfffe (Unknown) while
processing file: [Lisa Lougheed - Evergreen Nights.flac]"

The file is 24bit/96kHz.