fuse: document two functions

fuse/misc.go

@@ -30,7 +30,8 @@ func (code Status) Ok() bool {
 	return code == OK
 }
 
-// Convert error back to Errno based errors.
+// ToStatus extracts an errno number from Go error objects.  If it
+// fails, it logs an error and returns ENOSYS.
 func ToStatus(err error) Status {
 	switch err {
 	case nil:

fuse/print.go

@@ -226,6 +226,7 @@ func (f *FallocateIn) string() string {
 		f.Fh, f.Offset, f.Length, f.Mode)
 }
 
+// Print pretty prints FUSE data types for kernel communication
 func Print(obj interface{}) string {
 	t, ok := obj.(interface {
 		string() string