Add info about the new --control-* options

[ac000]

This documents the new (in 1.32.0) --control-mode, --control-user & --control-group options to untid(8).

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[ac000]

Don't hyphenate UNIX-domain

$ git range-diff db855ae...d9cd0ec
1:  db855ae ! 1:  d9cd0ec howto/source.rst: Add info about the new --control-* options
    @@ source/howto/source.rst: counterparts, see :ref:`here <source-config-src>`.
                # unitd --control :nxt_hint:`unix:/path/to/control.unit.sock <Note the unix: prefix>`

     +   * - **--control-mode**
    -+     - Sets the permission of the UNIX-domain control socket. Default: 0600
    ++     - Sets the permission of the UNIX domain control socket. Default: 0600
     +
     +   * - **--control-user**
    -+     - Sets the owner of the UNIX-domain control socket.
    ++     - Sets the owner of the UNIX domain control socket.
     +
     +   * - **--control-group**
    -+     - Sets the group of the UNIX-domain control socket.
    ++     - Sets the group of the UNIX domain control socket.
     +
         * - **--group name**, **--user name**
           - Group name and user name used to run Unit's non-privileged

[ac000]

Rebased onto release-1.32

$ git range-diff d9cd0ec...036920b
 1:  fd3afb4 <  -:  ------- WebAssembly is an 'internal' language module
 2:  d4605e6 <  -:  ------- fix issue-105
 -:  ------- >  1:  c241ce7 modify version and date in config
 -:  ------- >  2:  6261d93 add news document
 -:  ------- >  3:  adb97c4 Add changes to configuration doc
 -:  ------- >  4:  f619288 update building from source
 -:  ------- >  5:  14bda11 update app languages and optional
 -:  ------- >  6:  e41ac7c moving content to the right sections
 -:  ------- >  7:  34758c3 add configuration wasm section
 -:  ------- >  8:  9f642ac update configuration steps
 -:  ------- >  9:  230b213 fix trailing whitespace
 -:  ------- > 10:  0b02b5b add samples changes
 -:  ------- > 11:  91a163b add conditional logging to config
 -:  ------- > 12:  c66f677 make access log sub-section
 -:  ------- > 13:  c73b16a add variable
 -:  ------- > 14:  4082e9c add hyperlink
 -:  ------- > 15:  44f5755 update  language modules
 -:  ------- > 16:  d5eaa3e add if to NJS places
 -:  ------- > 17:  f6c9030 Apply suggestions from code review
 -:  ------- > 18:  1f671fd Apply suggestions from code review
 -:  ------- > 19:  1b82374 Apply suggestions from code review
 -:  ------- > 20:  7957520 update line length
 -:  ------- > 21:  b80dfcc Apply suggestions from code review
 -:  ------- > 22:  0939a4b Apply suggestions from code review
 3:  d9cd0ec = 23:  036920b howto/source.rst: Add info about the new --control-* options

[ac000]

Rebase with latest release-1.32

$ git range-diff 036920b...ab6c9a5
 -:  ------- >  1:  ebae145 Apply suggestions from code review
 -:  ------- >  2:  c5bc960 Update source/howto/source.rst
 -:  ------- >  3:  d9e2472 Update source/howto/samples.rst
 -:  ------- >  4:  2b090b2 Update source/howto/samples.rst
 -:  ------- >  5:  fd3afb4 WebAssembly is an 'internal' language module
 -:  ------- >  6:  151fb1d Update source/news/2024/unit-1.32.0-released.rst
 -:  ------- >  7:  6f7ce9c Update source/news/2024/unit-1.32.0-released.rst
 -:  ------- >  8:  f21a06b Update source/howto/source.rst
 -:  ------- >  9:  d5d75cd re-add removed section scripting
 -:  ------- > 10:  9329fe9 cherrypick  PR106
 -:  ------- > 11:  629ca81 news scripting support rewrite
 -:  ------- > 12:  9c12ff6 add CLI enhancements to news
 -:  ------- > 13:  c234e47 Update source/scripting.rst
 -:  ------- > 14:  fa86bc4 Update source/scripting.rst
 -:  ------- > 15:  001618c Update source/scripting.rst
 -:  ------- > 16:  971eb7d Update source/howto/samples.rst
 -:  ------- > 17:  0dde02d fix reference
 -:  ------- > 18:  47c4862 update deprecated warning
 -:  ------- > 19:  9199fe6 Update source/howto/source.rst
 -:  ------- > 20:  3da93db add Cache-control example
 -:  ------- > 21:  910dba3 add vars to njs objects
 -:  ------- > 22:  149e599 initial commit
 -:  ------- > 23:  2a6d490 add section in changes in behavior
 -:  ------- > 24:  c069d5c update intro
 -:  ------- > 25:  3412487 Update source/news/2024/unit-1.32.0-released.rst
 -:  ------- > 26:  65b1d1f update section order
 -:  ------- > 27:  b118b15 rephrase blog mention
 -:  ------- > 28:  ac8f544 add links in github section
 -:  ------- > 29:  dbeeb2d Apply suggestions from code review
 -:  ------- > 30:  08cb947 Update source/news/2024/unit-1.32.0-released.rst
 -:  ------- > 31:  118ca67 update tense
 -:  ------- > 32:  6c7975a Update source/news/2024/unit-1.32.0-released.rst
 -:  ------- > 33:  24c51bb remove redundant sentence
 -:  ------- > 34:  5931583 Update source/news/2024/index.rst
 -:  ------- > 35:  41c6f34 remove next level
 -:  ------- > 36:  b55ea23 Update source/news/2024/unit-1.32.0-released.rst
 -:  ------- > 37:  3b0563c Update source/news/2024/unit-1.32.0-released.rst
 -:  ------- > 38:  efd4f01 add full changelog
 -:  ------- > 39:  31d7c28 update wasm mentions, capitalization
 -:  ------- > 40:  2a6e124 Update source/howto/samples.rst
 -:  ------- > 41:  c7575ce Update source/howto/samples.rst
 1:  036920b = 42:  ab6c9a5 howto/source.rst: Add info about the new --control-* options