Log all failing rpc tests concisely.
Log all failing rpc tests concisely.

loxal/zcash,bitcoinsSG/zcash,CTRoundTable/Encrypted.Cash,bitcoinsSG/zcash,nathan-at-least/zcash,loxal/zcash,aniemerg/zcash,loxal/zcash,aniemerg/zcash,nathan-at-least/zcash,nathan-at-least/zcash,CTRoundTable/Encrypted.Cash,CTRoundTable/Encrypted.Cash,loxal/zcash,CTRoundTable/Encrypted.Cash,loxal/zcash,aniemerg/zcash,bitcoinsSG/zcash,CTRoundTable/Encrypted.Cash,aniemerg/zcash,nathan-at-least/zcash,CTRoundTable/Encrypted.Cash,aniemerg/zcash,bitcoinsSG/zcash,aniemerg/zcash,bitcoinsSG/zcash,bitcoinsSG/zcash,loxal/zcash,nathan-at-least/zcash,nathan-at-least/zcash