that the output is shown using Diff mode.
(Diff Mode): Explain what "patch" and "hunk" mean. Document
diff-update-on-the-fly and diff-refine-hunk.
(File Archives): Add rar support.
(VC Directory Mode): Move node contents here from vc1-xtra.texi; we
need to include it in the manual unconditionally, since it is now
crucial to using distributed version control systems.
+ (Comparing Files): Note that diff uses the minibuffer, and that the
+ output is shown using Diff mode.
+ (Diff Mode): Explain what "patch" and "hunk" mean. Document
+ diff-update-on-the-fly and diff-refine-hunk.
+ (File Archives): Add rar support.
* major.texi (Choosing Modes): Make mode selection sequence more
obvious by describing the steps in order of priority. Note that