- modular db_query

- empty password wont be asked animore

tools/db/import-md5-list

@@ -80,7 +80,12 @@ function md5_out_del() {
 
 # db_query <query> -> result
 function db_query() {
-	echo $@ | mysql -h$dbhost -u$dbuser -p$dbpwd $dbname
+  local args="-sN"  #no headers, no grid
+  args+=" -h$dbhost"
+  args+=" -u$dbuser"
+  [ -n "$dbpwd" ] && args+=" -p$dbpwd"
+  args+=" $dbname"
+  echo $@ | mysql $args
 }
 
 # db_exist_md5 <md5> -> true/false  0/1