* Remove incorrect x64 error message when showing usage description
* Add missing escape characters in usage description
The actual environment variable value would be printed without these
escape characters.
* Add missing quotation marks in usage description
* Also test existence of sha and signature files
For multiple reason the executable could be downloaded, but not the
signature files. Later on the script will error out because these files
are lacking.
Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
* Add prysm.sh1 for native Windows support via PowerShell
* Remove unused variable
* Merge branch 'master' into master
* Merge branch 'master' into master
* Merge branch 'master' into master
* Merge branch 'master' into master
