refactor: Printl helper in utils.go — Cli.Print delegates to it

core.Printl(w, format, args...) writes a formatted line to any writer,
defaulting to os.Stdout. Cli.Print() delegates to Printl.

Co-Authored-By: Virgil <virgil@lethean.io>

pkg/core/cli.go

@@ -14,7 +14,6 @@
 package core
 
 import (
-	"fmt"
 	"io"
 	"os"
 	"strings"
@@ -31,11 +30,7 @@ type Cli struct {
 //
 //	c.Cli().Print("hello %s", "world")
 func (cl *Cli) Print(format string, args ...any) {
-	w := cl.output
-	if w == nil {
-		w = os.Stdout
-	}
-	fmt.Fprintf(w, format+"\n", args...)
+	Printl(cl.output, format, args...)
 }
 
 // SetOutput sets the CLI output writer.

pkg/core/utils.go

@@ -5,10 +5,24 @@
 package core
 
 import (
+	"fmt"
+	"io"
+	"os"
 	"strings"
 	"unicode/utf8"
 )
 
+// Printl writes a formatted line to a writer, defaulting to os.Stdout.
+//
+//	core.Printl(nil, "hello %s", "world")     // → stdout
+//	core.Printl(w, "port: %d", 8080)          // → w
+func Printl(w io.Writer, format string, args ...any) {
+	if w == nil {
+		w = os.Stdout
+	}
+	fmt.Fprintf(w, format+"\n", args...)
+}
+
 // FilterArgs removes empty strings and Go test runner flags from an argument list.
 //
 //	clean := core.FilterArgs(os.Args[1:])