shell: mufs: use fprintf in shell_stat()

source/shell/mufs.c

@@ -145,12 +145,12 @@ int shell_stat(struct console *con, size_t argc, const char **argv)
 	}
 
 	switch (stat.type) {
-	case MUFS_DIR: printf("  type: directory\n"); break;
-	case MUFS_FILE: printf("  type: file\n"); break;
+	case MUFS_DIR: fprintf(con->fp, "  type: directory\n"); break;
+	case MUFS_FILE: fprintf(con->fp, "  type: file\n"); break;
 	default: return -1;
 	}
 
-	printf("  file size: %" PRIu32 " bytes\n", stat.file_size);
+	fprintf(con->fp, "  file size: %" PRIu32 " bytes\n", stat.file_size);
 
 	return 0;
 }