Merge pull request #17 from pepabo/fix/suppress-double-error-output

fix: suppress double error output by removing redundant error print in main.go

Author: buty4649

main.go

@@ -1,21 +1,13 @@
 package main
 
 import (
-	"fmt"
 	"os"
 
 	"github.com/pepabo/onecli/cmd"
 )
 
-var version string
-
 func main() {
-	if len(os.Args) > 1 && os.Args[1] == "--version" {
-		fmt.Printf("onecli version %s\n", version)
-		return
-	}
 	if err := cmd.Execute(); err != nil {
-		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
 		os.Exit(1)
 	}
 }