SWI-Prolog 9.1.21
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PublicShow sourcepatch.pl -- Run patch program

This library uses the GNU patch(1) program to merge changes.

Source patch(+Orig:string, +Diff:string, -Merged:string, +Options)
Patch the string Orig using Diff. Options:
status(-Status)
Unify Status with the completion status of patch. This is exit(0) for smooth completion and exit(1) if there are merge conflicts.
stderr(-String)
Unify String with the data patch(1) sent to standard error.