made the pack completely portable and wrote relevent bat files to go with it

gitportable/mingw64/share/doc/git-doc/gitmailmap.adoc

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+gitmailmap(5)
+=============
+
+NAME
+----
+gitmailmap - Map author/committer names and/or E-Mail addresses
+
+SYNOPSIS
+--------
+$GIT_WORK_TREE/.mailmap
+
+
+DESCRIPTION
+-----------
+
+If the file `.mailmap` exists at the toplevel of the repository, or at
+the location pointed to by the `mailmap.file` or `mailmap.blob`
+configuration options (see linkgit:git-config[1]), it
+is used to map author and committer names and email addresses to
+canonical real names and email addresses.
+
+
+SYNTAX
+------
+
+The '#' character begins a comment to the end of line, blank lines
+are ignored.
+
+In the simple form, each line in the file consists of the canonical
+real name of an author, whitespace, and an email address used in the
+commit (enclosed by '<' and '>') to map to the name. For example:
+--
+	Proper Name <commit@email.xx>
+--
+
+The more complex forms are:
+--
+	<proper@email.xx> <commit@email.xx>
+--
+which allows mailmap to replace only the email part of a commit, and:
+--
+	Proper Name <proper@email.xx> <commit@email.xx>
+--
+which allows mailmap to replace both the name and the email of a
+commit matching the specified commit email address, and:
+--
+	Proper Name <proper@email.xx> Commit Name <commit@email.xx>
+--
+which allows mailmap to replace both the name and the email of a
+commit matching both the specified commit name and email address.
+
+Both E-Mails and names are matched case-insensitively. For example
+this would also match the 'Commit Name <commit&#64;email.xx>' above:
+--
+	Proper Name <proper@email.xx> CoMmIt NaMe <CoMmIt@EmAiL.xX>
+--
+
+NOTES
+-----
+
+Git does not follow symbolic links when accessing a `.mailmap` file in
+the working tree. This keeps behavior consistent when the file is
+accessed from the index or a tree versus from the filesystem.
+
+EXAMPLES
+--------
+
+Your history contains commits by two authors, Jane
+and Joe, whose names appear in the repository under several forms:
+
+------------
+Joe Developer <joe@example.com>
+Joe R. Developer <joe@example.com>
+Jane Doe <jane@example.com>
+Jane Doe <jane@laptop.(none)>
+Jane D. <jane@desktop.(none)>
+------------
+
+Now suppose that Joe wants his middle name initial used, and Jane
+prefers her family name fully spelled out. A `.mailmap` file to
+correct the names would look like:
+
+------------
+Joe R. Developer <joe@example.com>
+Jane Doe <jane@example.com>
+Jane Doe <jane@desktop.(none)>
+------------
+
+Note that there's no need to map the name for '<jane&#64;laptop.(none)>' to
+only correct the names. However, leaving the obviously broken
+'<jane&#64;laptop.(none)>' and '<jane&#64;desktop.(none)>' E-Mails as-is is
+usually not what you want. A `.mailmap` file which also corrects those
+is:
+
+------------
+Joe R. Developer <joe@example.com>
+Jane Doe <jane@example.com> <jane@laptop.(none)>
+Jane Doe <jane@example.com> <jane@desktop.(none)>
+------------
+
+Finally, let's say that Joe and Jane shared an E-Mail address, but not
+a name, e.g. by having these two commits in the history generated by a
+bug reporting system. I.e. names appearing in history as:
+
+------------
+Joe <bugs@example.com>
+Jane <bugs@example.com>
+------------
+
+A full `.mailmap` file which also handles those cases (an addition of
+two lines to the above example) would be:
+
+------------
+Joe R. Developer <joe@example.com>
+Jane Doe <jane@example.com> <jane@laptop.(none)>
+Jane Doe <jane@example.com> <jane@desktop.(none)>
+Joe R. Developer <joe@example.com> Joe <bugs@example.com>
+Jane Doe <jane@example.com> Jane <bugs@example.com>
+------------
+
+
+
+SEE ALSO
+--------
+linkgit:git-check-mailmap[1]
+
+
+GIT
+---
+Part of the linkgit:git[1] suite