Merge branch 'mm/push-social-engineering-attack-doc' into maint

Doc update on fetching and pushing.

* mm/push-social-engineering-attack-doc:
  doc: mention transfer data leaks in more places

Documentation/git-fetch.txt

@@ -192,6 +192,8 @@ The first command fetches the `maint` branch from the repository at
 objects will eventually be removed by git's built-in housekeeping (see
 linkgit:git-gc[1]).
 
+include::transfer-data-leaks.txt[]
+
 BUGS
 ----
 Using --recurse-submodules can only fetch new commits in already checked