-commit/commitid.html . This file will contain the diff and diffstat of the
-commit. It will write the string "binary files differ" if the data is
-considered to be non-textual.
+commit/commitid.html.
+This file will contain the diffstat and diff of the commit.
+It will write the string "Binary files differ" if the data is considered to
+be non-textual.
+Too large diffs will be suppressed and a string
+"Diff is too large, output suppressed" will be written.
+.Pp
+When a commit HTML file exists it won't be overwritten again, note that if
+you've changed
+.Nm
+or changed one of the metadata files of the repository it is recommended to
+recreate all the output files because it will contain old data.
+To do this remove the output directory and
+.Ar cachefile ,
+then recreate the files.