add newline after -stdin*
Summary:
This is a backport of Core PR13716 [3/3]
Commit: https://github.com/bitcoin/bitcoin/pull/13716/commits/50c4afa3c420f11329cffb091b62beeb96b39183
Depends on D8107
Test Plan:
Verify that newlines are added between the two passwords:
src/bitcoin-cli -stdinrpcpass -stdinwalletpassphrase walletpassphrase
Reviewers: O1 Bitcoin ABC, #bitcoin_abc, deadalnix
Reviewed By: O1 Bitcoin ABC, #bitcoin_abc, deadalnix
Subscribers: deadalnix
Differential Revision: https://reviews.bitcoinabc.org/D8108