app: rename app implementation package

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

cmd/fpkg/proc.go

@@ -5,20 +5,20 @@ import (
 	"os"
 
 	"git.gensokyo.uk/security/fortify/fst"
-	"git.gensokyo.uk/security/fortify/internal/app"
+	"git.gensokyo.uk/security/fortify/internal/app/setuid"
 	"git.gensokyo.uk/security/fortify/internal/fmsg"
 )
 
 func mustRunApp(ctx context.Context, config *fst.Config, beforeFail func()) {
 	rs := new(fst.RunState)
-	a := app.MustNew(ctx, std)
+	a := setuid.MustNew(ctx, std)
 
 	var code int
 	if sa, err := a.Seal(config); err != nil {
 		fmsg.PrintBaseError(err, "cannot seal app:")
 		code = 1
 	} else {
-		code = app.PrintRunStateErr(rs, sa.Run(rs))
+		code = setuid.PrintRunStateErr(rs, sa.Run(rs))
 	}
 
 	if code != 0 {