Node:Saving the Changed File, Previous:Merging Incomplete Lines, Up:diff3 Merging
Traditional Unix diff3 generates an ed script without the
trailing w and q commands that save the changes.
System V diff3 generates these extra commands. GNU
diff3 normally behaves like traditional Unix
diff3, but with the -i option it behaves like
System V diff3 and appends the w and q
commands.
The -i option requires one of the ed script options
-AeExX3, and is incompatible with the merged output option
-m.