Ubuntu installs AsciiDoc by default when a huge installation package is recommended

$ sudo apt-get install AsciiDoc
Reading Package Lists ... Done
Building Dependency Tree
Reading state information ... Done
The following additional packages'll be installed:
Dblatex docbook-dsssl docbook-utils docbook-xml docbook-xsl Fonts-lato
Fonts-lmodern Fonts-texgyre Jadetex Javascript-common Libfile-homedir-perl
Libfile-which-perl libjs-jquery libosp5 libostyle1c2 libpotrace0 libptexenc1
libruby2.3 libsgmls-perl libsp1c2 libsynctex1 libtexlua52 libtexluajit2
Libxml2-utils libzzip-0-13 Lmodern Lynx Lynx-common openjade
Preview-latex-style Prosper Ps2eps python-apt rake Ruby Ruby-did-you-mean
Ruby-minitest ruby-net-telnet Ruby-power-assert ruby-test-unit ruby2.3
Rubygems-integration sgml-data sgmlspl sp Tex-common Tex-gyre texlive
Texlive-base Texlive-bibtex-extra texlive-binaries Texlive-extra-utils
Texlive-font-utils texlive-fonts-recommended Texlive-fonts-recommended-doc
texlive-generic-recommended Texlive-latex-base Texlive-latex-base-doc
Texlive-latex-extra Texlive-latex-extra-doc texlive-latex-recommended
Texlive-latex-recommended-doc Texlive-luatex Texlive-math-extra
Texlive-pictures Texlive-pictures-doc texlive-pstricks Texlive-pstricks-doc
Tipa Xmlto Xsltproc
Suggested Packages:
Source-highlight vim-addon-manager DocBook Inkscape latex-cjk-all OPENSP
Texlive-lang-all texlive-lang-cyrillic Texlive-xetex transfig Xindy
Docbook-dsssl-doc docbook-defguide dbtoepub docbook-xsl-doc-html
| Docbook-xsl-doc-pdf | Docbook-xsl-doc-text | Docbook-xsl-doc
Docbook-xsl-saxon fop Libsaxon-java Libxalan2-java Libxslthl-java Xalan
Apache2 | lighttpd | httpd sgmls-doc python-apt-dbg python-apt-doc ri
Ruby-dev bundler perlsgml w3-recs debhelper perl-tk dvipng dvidvi fragmaster
Purifyeps lacheck Chktex latexmk latexdiff psutils python-pygments
Libspreadsheet-parseexcel-perl libtcltk-ruby Dot2tex Prerex w3m | Lynx-cur
| Links Xmltex
The following NEW packages'll be installed:
AsciiDoc Dblatex docbook-dsssl docbook-utils docbook-xml docbook-xsl
Fonts-lato Fonts-lmodern Fonts-texgyre Jadetex Javascript-common
Libfile-homedir-perl Libfile-which-perl libjs-jquery LIBOSP5 libostyle1c2
Libpotrace0 libptexenc1 libruby2.3 Libsgmls-perl libsp1c2 libsynctex1
Libtexlua52 libtexluajit2 libxml2-utils libzzip-0-13 lmodern Lynx
Lynx-common openjade preview-latex-style Prosper ps2eps python-apt rake Ruby
Ruby-did-you-mean ruby-minitest ruby-net-telnet Ruby-power-assert
Ruby-test-unit ruby2.3 rubygems-integration sgml-data sgmlspl sp Tex-common
Tex-gyre texlive texlive-base Texlive-bibtex-extra texlive-binaries
Texlive-extra-utils texlive-font-utils texlive-fonts-recommended
Texlive-fonts-recommended-doc texlive-generic-recommended Texlive-latex-base
Texlive-latex-base-doc Texlive-latex-extra Texlive-latex-extra-doc
texlive-latex-recommended Texlive-latex-recommended-doc Texlive-luatex
Texlive-math-extra texlive-pictures Texlive-pictures-doc Texlive-pstricks
Texlive-pstricks-doc Tipa Xmlto Xsltproc
0 upgraded, newly installed, 0 to remove and 179 not upgraded.
need to get 819 MB of archives.
After this operation, 1,345 MB of additional disk space would be used.
Want to continue? [y/n] n
Abort.

Use the--no-install-recommend parameter to prevent unnecessary components from being installed

$ sudo apt-get--no-install-recommends install AsciiDoc
Reading Package Lists ... Done
Building Dependency Tree
Reading state information ... Done
Suggested Packages:
Source-highlight Vim-addon-manager
Recommended Packages:
Dblatex docbook-utils libxml2-utils Xmlto
The following NEW packages'll be installed:
AsciiDoc
0 upgraded, 1 newly installed, 0 to remove and 179 not upgraded.
Need to get 704 KB of archives.
After this operation, 2,449 KB of additional disk space would be used.
Get:1 Http://cn.archive.ubuntu.com/ubuntu xenial/universe amd64 asciidoc all 8.6.9-3 [704 KB]
fetched 704 kB in 1s (480 kb/s)
Selecting previously unselected package AsciiDoc.
(Reading database ... 214659 files and directories currently installed.)
Preparing to unpack .../asciidoc_8.6.9-3_all.deb ...
Unpacking AsciiDoc (8.6.9-3) ...
Processing triggers for man-db (2.7.5-1) ...
Setting up AsciiDoc (8.6.9-3) ...

Ubuntu installs AsciiDoc by default when a huge installation package is recommended