Changed error handling during blob export command in goat to help with account migration (#1073)
Prints the error and continues rather than bailing entirely during blob
export. Slightly worse in the "i have a connection problem" scenario,
but means repository exports where some blobs are missing actually work
now rather than getting stuck.
Was trying to migrate my main to my own PDS and ran into it, and figured
addressing it would be both simple enough and useful to others trying to
do the same.