Move docs folder to man.

docs/src/git-reparent-branch.txt

Index: docs/src/git-reparent-branch.txt
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-git-reparent-branch(1)
-=====================
-
-NAME
-----
-git-reparent-branch -
-include::_git-reparent-branch_desc.helper.txt[]
-
-SYNOPSIS
---------
-[verse]
-'git reparent-branch' <new_parent>
-'git reparent-branch' --lkgr
-'git reparent-branch' --root
-
-DESCRIPTION
------------
-
-Change the 'upstream' of the current branch, and then run
-linkgit:git-rebase-update[1] to move the commits in the current branch, as well
-as the commits in all descendant branches, onto the new parent.
-
-`<new_parent>` may be either a local branch, remote branch, OR a tag (such as
-`lkgr`).
-
-This is particularly useful to reparent an independent CL to become dependent on
-another CL, or vice versa. This could happen if you started both on the
-assumption that they were independent, but later realized that this was not the
-case.
-
-
-OPTIONS
--------
-
-<new_parent>::
-  The new parent to set as the upstream for this branch. May be a branch ref or
-  a tag.
-
---lkgr::
-  Reparent to track lkgr.
-
---root::
-  Reparent to track the 'root' branch. Defaults to 'origin/master'. See
-  linkgit:git-new-branch[1]'s CONFIGURATION VARIABLES section..
-
-
-include::_aliases.txt[]
-
-----
-[alias]
-  git rp = reparent-branch
-----
-
-SEE ALSO
---------
-linkgit:git-rebase-update[1], linkgit:git-rename-branch[1],
-linkgit:git-new-branch[1], linkgit:git-upstream-diff[1]
-
-include::_footer.txt[]
-
-// vim: ft=asciidoc: