SFTP: Replace incorrect comment about filesize. There is no 4 GiB limit.
SFTP: Replace incorrect comment about filesize. There is no 4 GiB limit.

terrafrost/phpseclib,thaigialai1987/phpseclib,melya/phpseclib,danog/phpseclib,creatuity/phpseclib,paragonie-scott/phpseclib,creatuity/phpseclib,melya/phpseclib,metaclassing/phpseclib,kenichiii/phpseclib,phpseclib/phpseclib,danog/phpseclib,paragonie-scott/phpseclib,kenichiii/phpseclib,splitice/phpseclib,metaclassing/phpseclib,thaigialai1987/phpseclib,splitice/phpseclib