Update 'exercices/ex.2/win_create.bat'

exercices/ex.2/win_create.bat

@@ -6,7 +6,7 @@ SET SOME_VAR="main.cpp~"
 DEL /S "%SOME_VAR%" || echo "file not found"
 SET SOME_VAR=out
 RD /S /Q "%SOME_VAR%" || echo "file not found"
-rem CALL :_ex
+CALL :_ex
 
 EXIT /B %ERRORLEVEL%