refactoring changes from sequpgrade (endReturn, ...) and some modernizations

seqs/spamass.sh

@@ -22,7 +22,7 @@ CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 #  #fi
 #}
 
-step_1_info() { 
+step_1_info() {
   echo "Install packages: $toolDeps"
   echoinfo "May take a long time"
 }
@@ -34,7 +34,7 @@ step_1() {
   fi
   exe apt update
   exe apt install $toolDeps $aptOpt
-} 
+}
 
 step_20_info() { echo "List spam/ham counts"; }
 step_20_alias() { echo "list"; }