fix galera sst tests

note that ${A#foo} is $A if there's no prefix foo. That's why galera nodes tried to connect to 127.0.0.1:127.0.0.1 if there was no port in the address Followup for 2b35db5

Author: vuvova

scripts/wsrep_sst_common.sh

@@ -41,15 +41,14 @@ case "$1" in
  addr_no_bracket=${WSREP_SST_OPT_ADDR#\[}
  readonly WSREP_SST_OPT_HOST_UNESCAPED=${addr_no_bracket%%\]*}
  readonly WSREP_SST_OPT_HOST="[${WSREP_SST_OPT_HOST_UNESCAPED}]"
- remain=${WSREP_SST_OPT_ADDR#*\]}
- remain=${remain#*:}
  ;;
  *)
  readonly WSREP_SST_OPT_HOST=${WSREP_SST_OPT_ADDR%%[:/]*}
  readonly WSREP_SST_OPT_HOST_UNESCAPED=$WSREP_SST_OPT_HOST
- remain=${WSREP_SST_OPT_ADDR#*:}
  ;;
  esac
+ remain=${WSREP_SST_OPT_ADDR#${WSREP_SST_OPT_HOST}}
+ remain=${remain#:}
  readonly WSREP_SST_OPT_ADDR_PORT=${remain%%/*}
  remain=${remain#*/}
  readonly WSREP_SST_OPT_MODULE=${remain%%/*}