Docs: Added licensing to contributing guide

Also renamed COPYING.TXT to LICENSE

Signed-off-by: Max Logaev <maxlogaev@proton.me>

CONTRIBUTING.md

@@ -66,6 +66,17 @@ to the end commit message body on a new line.
 
 Use **rebase** to keep your branch up to date.
 
+## Licensing
+
+For new source code files and for existing ones without a license, you need to add the following header to the beginning of the file:
+```asm
+; SPDX-License-Identifier: GPL-2.0-only
+; Program - Brief description.
+; Copyright (C) 2011-2025 KolibriOS team
+```
+
+Be careful when setting copyright and date interval. Review the file's history to verify its origin.
+
 ## Conclusion
 
 We hope this small instructions will help you to get familiar with KolibriOS contribution rules and inspire you to participate in the life of our project.

README.md

@@ -1,6 +1,6 @@
 # KolibriOS
 
-[![License](https://img.shields.io/badge/License-GPL%202.0-green)](./COPYING.TXT)
+[![License](https://img.shields.io/badge/License-GPL%202.0-green)](./LICENSE)
 [![Build system](https://git.kolibrios.org/KolibriOS/kolibrios/actions/workflows/build.yaml/badge.svg)](https://git.kolibrios.org/KolibriOS/kolibrios/actions)
 
 KolibriOS is a hobby operating system for x86-compatible computers, which is currently being developed by a small but passionate team of enthusiasts.

data/Tupfile.lua

@@ -635,7 +635,6 @@ tup.append_table(extra_files, {
 })
 -- For russian build, add russian-only programs.
 if build_type == "ru_RU" then tup.append_table(img_files, {
- {"PERIOD", VAR_PROGS .. "/other/period/trunk/period"},
  {"GAMES/KLAVISHA", VAR_PROGS .. "/games/klavisha/klavisha"},
  {"DEVELOP/EXAMPLES/TESTCON2", VAR_PROGS .. "/develop/libraries/console_coff/examples/testcon2_rus"},
 }) else tup.append_table(img_files, {
@@ -643,6 +642,7 @@ if build_type == "ru_RU" then tup.append_table(img_files, {
 }) end
 
 if build_type == "ru_RU" then tup.append_table(extra_files, {
+ {"kolibrios/utils/period", VAR_PROGS .. "/other/period/trunk/period"},
  {"kolibrios/games/Dungeons/Dungeons", VAR_PROGS .. "/games/Dungeons/Dungeons"},
 }) end
 

programs/fs/unz/unz.asm

@@ -41,6 +41,7 @@ dd     1, start, init_end, end_mem, stack_top, params,	0
 include 'lang.inc' ; Language support for locales: ru_RU (CP866), es_ES, en_US.
 include '../../macros.inc'
 include '../../proc32.inc'
+include "../../string.inc"
 include '../../develop/libraries/box_lib/trunk/box_lib.mac'
 include '../../dll.inc'
 ;include '../../debug.inc'
@@ -369,6 +370,12 @@ endl
 
 	mcall	30,4,,1
 	jmp	.n
+@@:
+	stdcall string.length, pathOut
+	add     eax, pathOut
+	cmpne   [eax - 1], byte '/', @f
+	mov     [eax - 1], byte 0
+	dec     dword[edtUnpPath.size]
 @@:
 	mcall	30,4,pathOut,1
 .n: