Letsencrypt Cloudflare ./acmetool.sh check_cfapi : No Cloudflare Global API Key or API Token detected

Hello
as indicated here: Letsencrypt - Official acmetool.sh testing thread for Centmin Mod 123.09beta01
I tried why the acmetool was not checking using Cloudflare DNS and ran acmetool.sh check_cfapi command.

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Code:

# echo y | ./acmetool.sh check_cfapi

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acmetool.sh is in beta testing phase
please read & provide bug reports &
feedback for this tool via the forums
https://centminmod.com/acmetool
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Verifying working Cloudflare DNS API Credentials
No Cloudflare Global API Key or API Token detected

I can confirm I have edited (and yes . it was with vim . i saw somewhere the warning about importing by FTP and dos2unix . ) /etc/centminmod/custom_config.inc and have the following

Code:

grep CF_ /etc/centminmod/custom_config.inc
CF_DNSAPI='y'
CF_KEY='kkkkkkkkkkkkkkk'
CF_EMAIL='ffffffffffff.llllllllll@ddddddcom'
CF_Token='tttttttttttttttttttttttt'
CF_Account_ID='aaaaaaaaaaa'

any suggestion on what i'm doing wrong ?
thanks.