Update PostgreSQL module to run as normal user with sudo for PostgreSQL

also clean up all PostgreSQL command calls as array type calls
clean up binary finder for postgresql installations
and add port/host override options

borg.backup.functions.init.sh

@@ -32,7 +32,7 @@ function version {
 }
 
 # version for all general files
-VERSION="4.7.2";
+VERSION="4.7.3";
 
 # borg version and borg comamnd
 BORG_VERSION="";
@@ -93,6 +93,8 @@ REGEX="";
 REGEX_COMMENT="^[\ \t]*#";
 REGEX_GLOB='\*';
 REGEX_NUMERIC="^[0-9]{1,2}$";
+# port regex, but only approximately
+REGEX_PORT="^[0-9]{2,5}$";
 REGEX_ERROR="^Some part of the script failed with ERROR:";
 PRUNE_DEBUG="";
 INIT_REPOSITORY=0;
@@ -156,6 +158,10 @@ SUB_BACKUP_SET="";
 # for database backup only
 DATABASE_FULL_DUMP="";
 DATABASE_USER="";
+DATABASE_USE_SUDO="";
+DATABASE_SUDO_USER="";
+DATABASE_PORT="";
+DATABASE_HOST="";
 # only for mysql old config file
 MYSQL_DB_CONFIG="";
 MYSQL_DB_CONFIG_PARAM="";