Merge #16489: log: harmonize bitcoind logging

e90478f43e7bf9726ba033fde4a2776f9d5a9af4 log: harmonize bitcoind server logging (Jon Atack)

Pull request description:

  Harmonize the user-facing output of the  `bitcoind -daemon`, `bitcoin-cli help stop`, `bitcoin-cli stop`, and `bitcoind -version` commands to be consistent with each other as well as with the "Bitcoin Core is probably already running" messages, e.g. `git grep 'probably already running.")'`.

  Before:

  ```
  $ bitcoind -regtest -daemon
  Bitcoin Core daemon starting

  $ bitcoind -regtest -daemon
  Error: Bitcoin Core is probably already running.

  $ bitcoind -regtest -version
  Bitcoin Core Daemon version v0.18.99.0-e653eeff76-dirty

  $ bitcoin-cli -regtest help stop
  stop

  Stop Bitcoin server.

  $ bitcoin-cli -regtest stop
  Bitcoin server stopping
  ```
  these five commands output:

  "Bitcoin Core daemon"
  "Bitcoin Core"
  "Bitcoin Core Daemon"
  "Bitcoin server"
  "Bitcoin server"

  After this commit, they are all "Bitcoin Core".

  ```
  $ bitcoind -regtest -daemon
  Bitcoin Core starting

  $ bitcoind -regtest -daemon
  Error: Bitcoin Core is probably already running.

  $ bitcoind -regtest -version
  Bitcoin Core version v0.18.99.0-e90478f43e-dirty

  $ bitcoin-cli -regtest help stop
  stop

  Request a graceful shutdown of Bitcoin Core.

  $ bitcoin-cli -regtest stop
  Bitcoin Core stopping
  ```

ACKs for top commit:
  practicalswift:
    ACK e90478f43e7bf9726ba033fde4a2776f9d5a9af4 (read code which looks good)
  practicalswift:
    ACK e90478f43e7bf9726ba033fde4a2776f9d5a9af4 -- diff looks correct
  fjahr:
    utACK e90478f
  michaelfolkson:
    ACK e90478f43e7bf9726ba033fde4a2776f9d5a9af4. Tested command outputs and as described.
  ariard:
    Tested ACK e90478f
  fanquake:
    ACK e90478f43e7bf9726ba033fde4a2776f9d5a9af4

Tree-SHA512: 9ee584d260b5c224463318a51c2856a7c0e463be039fea072e5d5bab8898f0043b3930cf887a47aafd0f3447adb551b5e47a4e98ebdefc6cdb8e77edde0347b0

0 files changed, 0 insertions, 0 deletions