Tidying

src/freedombone-app-irc

 function change_password_irc {
     new_global_password="$2"
 
-    # Change the password for all users
-    for d in /home/*/ ; do
-        USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
-        if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
-            ${PROJECT_NAME}-pass -u "$USERNAME" -a irc -p "$new_global_password"
-        fi
-    done
-
+    set_password_for_all_users irc "$new_global_password"
     irc_set_global_password_base "$new_global_password"
 }
 
 
     IRC_PASSWORD="$(create_password ${MINIMUM_PASSWORD_LENGTH})"
 
-    # Change the password for all users
-    for d in /home/*/ ; do
-        USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
-        if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
-            ${PROJECT_NAME}-pass -u "$USERNAME" -a irc -p "$IRC_PASSWORD"
-        fi
-    done
+    set_password_for_all_users irc "$IRC_PASSWORD"
+
 
     echo '**************************************************' > /etc/ngircd/motd
     echo $'*           F R E E D O M B O N E   I R C        *' >> /etc/ngircd/motd

src/freedombone-app-mumble

 function change_password_mumble {
     new_mumble_password="$2"
 
-    # Change the password for all users
-    for d in /home/*/ ; do
-        USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
-        if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
-            ${PROJECT_NAME}-pass -u "$USERNAME" -a mumble -p "$new_mumble_password"
-        fi
-    done
-
+    set_password_for_all_users mumble "$new_mumble_password"
     sed -i "s|serverpassword=.*|serverpassword=$new_mumble_password|g" /etc/mumble-server.ini
     systemctl restart mumble-server
 }
     update_default_domain
     systemctl restart mumble-server
 
-    # Change the password for all users
-    for d in /home/*/ ; do
-        USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
-        if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
-            ${PROJECT_NAME}-pass -u "$USERNAME" -a mumble -p "$MUMBLE_SERVER_PASSWORD"
-        fi
-    done
+    set_password_for_all_users mumble "$MUMBLE_SERVER_PASSWORD"
 
     function_check configure_firewall_for_mumble
     configure_firewall_for_mumble

src/freedombone-utils-keys

     fi
 }
 
+function set_password_for_all_users {
+    app_name="$1"
+    change_password="$2"
+
+    for d in /home/*/ ; do
+        USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
+        if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
+            ${PROJECT_NAME}-pass -u "${USERNAME}" -a "${app_name}" -p "${change_password}"
+        fi
+    done
+}
+
 # NOTE: deliberately there is no "exit 0"