Update get-prebuilt.sh

fix 'WARNING: could not get prebuilt.list from repository' message
Merge pull request #909 from lgarbo/master

Update get-prebuilt.sh
Fixed typo
Merge commit '96ab5caa7106e76b2baab0840baa46512ca79823' into personalMaster

Conflicts:
	scripts/get-prebuilt.sh:
 use tlsv1.2