Bug create admin-menu when installing the component due to duplicate column element in table #__extensions.
Delete whitespace at end of line.
Merge pull request #4499 from Arkadiy-Sedelnikov/feature

Bug create admin-menu when installing the component due to duplicate col...
[Code Style] Changes in tag standards: Plugins. Fixes #4639
[Code Style] Changes in tag standards: frontend components. Fixes #4637

[Code Style] Changes in tag standards: frontend com_config

[Code Style] Changes in tag standards: frontend com_contact

[Code Style] Changes in tag standards: frontend com_content

[Code Style] Changes in tag standards: frontend com_finder

[Code Style] Changes in tag standards: frontend com_newsfeeds

[Code Style] Changes in tag standards: frontend com_search

[Code Style] Changes in tag standards: frontend com_tags

[Code Style] Changes in tag standards: frontend com_users

[Code Style] Changes in tag standards: frontend com_weblinks

[Code Style] Changes in tag standards: frontend com_wrapper

[Code Style] Changes in tag standards: frontend com_newsfeed

[Code Style] Changes in tag standards: frontend com_mailto