cleaned up >/dev/nulls in Dockerfile and replaced em dashes with normal dashes (#2024)

target/scripts/helper-functions.sh

@@ -2,7 +2,7 @@
 
 DMS_DEBUG="${DMS_DEBUG:=0}"
 
-# ? ––––––––––––––––––––––––––––––––––––––––––––– BIN HELPER
+# ? --------------------------------------------- BIN HELPER
 
 function errex
 {
@@ -15,7 +15,7 @@ function escape
   echo "${1//./\\.}"
 }
 
-# ? ––––––––––––––––––––––––––––––––––––––––––––– IP & CIDR
+# ? --------------------------------------------- IP & CIDR
 
 function _mask_ip_digit
 {
@@ -57,7 +57,7 @@ function _sanitize_ipv4_to_subnet_cidr
 }
 export -f _sanitize_ipv4_to_subnet_cidr
 
-# ? ––––––––––––––––––––––––––––––––––––––––––––– ACME
+# ? --------------------------------------------- ACME
 
 function _extract_certs_from_acme
 {
@@ -106,7 +106,7 @@ for key, value in acme.items():
 }
 export -f _extract_certs_from_acme
 
-# ? ––––––––––––––––––––––––––––––––––––––––––––– Notifications
+# ? --------------------------------------------- Notifications
 
 function _notify
 {
@@ -132,7 +132,7 @@ function _notify
 }
 export -f _notify
 
-# ? ––––––––––––––––––––––––––––––––––––––––––––– Relay Host Map
+# ? --------------------------------------------- Relay Host Map
 
 # setup /etc/postfix/relayhost_map
 # --
@@ -170,7 +170,7 @@ function _populate_relayhost_map
 }
 export -f _populate_relayhost_map
 
-# ? ––––––––––––––––––––––––––––––––––––––––––––– File Checksums
+# ? --------------------------------------------- File Checksums
 
 # file storing the checksums of the monitored files.
 # shellcheck disable=SC2034