Teach file about Apple's binary plists (even
though I wish they wouldn't use them).

Reference: /n/atom/patch/applied/file-plist
Date: Sun Jan  4 16:58:02 CET 2015
Signed-off-by: a@9srv.net

--- /sys/src/cmd/file.c	Sun Jan  4 16:57:12 2015
+++ /sys/src/cmd/file.c	Sun Jan  4 16:57:13 2015
@@ -781,6 +781,7 @@
 	"BEGIN:VCARD\r\n",	"vCard",		13,	"text/directory;profile=vcard",
 	"BEGIN:VCARD\n",	"vCard",		12,	"text/directory;profile=vcard",
 	"OggS",			"ogg",			4,	"application/ogg",
+	"bplist00",			"Apple binary property list",	8,	"application/binary",
 	0,0,0,0
 };