cmd/sharefs: rename fuse-helper to fuse-operations

This is not really just library wrapper functions, but instead implements the callbacks, so fuse-operations makes more sense.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/sharefs/main.go

@@ -5,7 +5,6 @@ import (
 	"os"
 	"path"
 	"runtime"
-	"syscall"
 )
 
 // executableName is the [path.Base] name of the executable that started the current process.
@@ -24,8 +23,5 @@ func main() {
 	log.SetFlags(0)
 	log.SetPrefix(executableName + ": ")
 
-	// don't mask creation mode, kernel already did that
-	syscall.Umask(0)
-
 	os.Exit(_main(len(os.Args), copyStrings(os.Args...)))
 }