modernize multiple seqs and fix deprecated use of endCheckEmpty

sequpgrade.sh

@@ -74,6 +74,7 @@ makechanges() {
 
     exe sed ${inplace} 's/"*${*DEFAULT_EDITOR_SYSTEM}*"*/editor/'${sedprint} "${file}"
 
+    exe sed ${inplace} 's/endCheckEmpty/endIfEmpty/'${sedprint} "${file}"
     exe sed ${inplace} 's/^[[:space:]]*step_config/seq_config/'${sedprint} "${file}"
     exe sed ${inplace} 's/^\(step_.*_alias\)()[[:space:]]*{[[:space:]]*ALIAS=/\1() { echo /'${sedprint} "${file}"
     exe sed ${inplace} 's/SEQUENCER_ARGS/sqr_args/'${sedprint} "${file}"