getssl fails blaming curl with incorrect error exit code

[rcoss]

getssl v 2.49 fails with the following error message:
"curl needs updating, your version does not support SNI (multiple SSL domains on a single IP)"

Several newer versions of curl were compiled and installed but the error persisted.
This error is triggered by curl exiting with exit code 60 (line 869 in getssl v2.49)
Looking at curl exit codes it happens that exit code 60 means:
"Peer certificate cannot be authenticated with known CA certificates."
That was the real problem: CA certificates were outdated
getssl error message is misleading and should be updated.