xmlmerge(1) on Linux
The text 3cb9a373247d, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
Command line tool for merging XML snippets from multiple files
Flags it lists
-
--compact -
--header -
--help -
--logfile -
--loglevel -
--logtype -
--version -
-h -
-o -
-v