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

seqs/whoogle.sh

@@ -40,7 +40,7 @@ step_20() {
   exe apt-get install "${toolDeps[@]}" ${sq_aptOpt}
   info "Installing ${toolName} from ${sq_gitUrl}"
   exe git clone "${sq_gitUrl}" "${sc_whoogleDir:?}"
-  endReturn -o $? "Cloning ${toolName} failed"
+  endReturn "Cloning ${toolName} failed"
 
   exe cd "${sc_whoogleDir:?}"
   exe python3 -m venv venv
@@ -84,7 +84,7 @@ step_30_info() { echo "Upgrade installation using git"; }
 step_30_alias() { echo "upgrade"; }
 step_30() {
   exe cd "${sc_whoogleDir:?}"
-  endReturn -o $? "${toolName} doesn't seam to be installed"
+  endReturn "${toolName} doesn't seam to be installed"
   exe service "${toolName}" stop
   exe git pull
 }