Updating the Copyright line display when running 'mono --version' (#19060)
Removes the copyright year.
```
$ mono --version
Mono JIT compiler version 6.6.0.166 (2019-08/
d9001b5ae70 Wed Feb 12 19:20:16 EST 2020)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
TLS:
SIGSEGV: altstack
Notification: kqueue
Architecture: amd64
Disabled: none
Misc: softdebug
Interpreter: yes
LLVM: yes(610)
Suspend: hybrid
GC: sgen (concurrent by default)
```
Co-authored-by: Alfonso, Ivan <alfonsoi@amazon.com>
Co-authored-by: Alexander Köplinger <alex.koeplinger@outlook.com>