Python update 3.7->3.8

[Rozhuk Ivan]

On Wed, 28 Apr 2021 03:25:02 -0600
"@lbutlr" <kremels at kreme.com> wrote:

> > This long command hanle files that requires shebang:
> > portmaster -BvD -y --no-confirm --delete-build-only `grep -rsp
> > "\/python3\.7" /usr/local/ | grep -v '/usr/local/man/' | grep -v
> > '/usr/local/lib/python3' | sed -e 's|:.*||' -e 's|Binary file ||'
> > -e 's| matches||' | xargs pkg which -oq | sort -u`  
> 
> What grep are you using?
> 
> /usr/bin/grep -rsp "python3\.7" /usr/local/ => grep: invalid option
> -- p
> 
> (FreeBSD 12.2, grep (GNU grep) 2.5.1-FreeBSD)
> 

WITH_BSD_GREP=
# Install BSD-licensed grep as '[ef]grep' instead of GNU grep.