applypatch(1p) on Linux
The text 3c6cd9f3326f, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it.
apply 'makepatch' generated script to update a source tree
Flags it lists
-
-check -
-directory -
-force -
-patch -
-quiet -
-retain -
-verbose