- Set all scripts +x, ie 644 => 755.
Prior to this change some scripts were not executable and therefore
could not be called directly.
~~~
git ls-files -s \*.{sh,pl,py} | grep -v 100755
~~~
Closes https://github.com/curl/curl/pull/10219
- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING
checksrc is updated to allow non-year using copyright statements
Closes#10205
