Make clear where the parsing error comes from: SSL or TLS

testssl.sh

@@ -12126,7 +12126,7 @@ parse_sslv2_serverhello() {
  [[ "$DEBUG" -ge 5 ]] && echo "$v2_hello_ascii"
  if [[ -z "$v2_hello_ascii" ]]; then
  ret=0 # 1 line without any blanks: no server hello received
- debugme echo "server hello empty"
+ debugme echo "(SSLv2) ServerHello empty"
  else
  # now scrape two bytes out of the reply per byte
  v2_hello_initbyte="${v2_hello_ascii:0:1}" # normally this belongs to the next, should be 8!
@@ -14179,7 +14179,7 @@ parse_tls_serverhello() {
  done
 
  if [[ $tls_serverhello_ascii_len -eq 0 ]]; then
- debugme echo "server hello empty, TCP connection closed"
+ debugme echo "(TLS) ServerHello empty, TCP connection closed"
  DETECTED_TLS_VERSION="closed TCP connection "
  [[ $DEBUG -ge 1 ]] && tmpfile_handle ${FUNCNAME[0]}.txt
  return 1 # no server hello received