Do print SST log messages.

scripts/wsrep_sst_common.sh

@@ -128,7 +128,7 @@ wsrep_log()
     # echo everything to stderr so that it gets into common error log
     # deliberately made to look different from the rest of the log
     local readonly tst="$(date +%Y%m%d\ %H:%M:%S.%N | cut -b -21)"
-    echo "$tst WSREP_SST: " >&2
+    echo "WSREP_SST: $* ($tst)" >&2
 }
 
 wsrep_log_error()