Replace manual error checks with 'set -e' in scripts Removed repeated 'if [ $? -ne 0 ]; then exit; fi' error checks and added 'set -e' at the start of tarball-client-sid.sh, tarball-client.sh, and tarball-cloud.sh. This simplifies error handling and ensures the scripts exit immediately on any command failure. https://github.com/bibledit/cloud/issues/1026