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

gitportable/mingw64/share/doc/git-doc/git-merge-file.adoc

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+git-merge-file(1)
+=================
+
+NAME
+----
+git-merge-file - Run a three-way file merge
+
+
+SYNOPSIS
+--------
+[verse]
+'git merge-file' [-L <current-name> [-L <base-name> [-L <other-name>]]]
+	[--ours|--theirs|--union] [-p|--stdout] [-q|--quiet] [--marker-size=<n>]
+	[--[no-]diff3] [--object-id] <current> <base> <other>
+
+
+DESCRIPTION
+-----------
+Given three files `<current>`, `<base>` and `<other>`,
+'git merge-file' incorporates all changes that lead from `<base>`
+to `<other>` into `<current>`. The result ordinarily goes into
+`<current>`. 'git merge-file' is useful for combining separate changes
+to an original. Suppose `<base>` is the original, and both
+`<current>` and `<other>` are modifications of `<base>`,
+then 'git merge-file' combines both changes.
+
+A conflict occurs if both `<current>` and `<other>` have changes
+in a common segment of lines. If a conflict is found, 'git merge-file'
+normally outputs a warning and brackets the conflict with lines containing
+<<<<<<< and >>>>>>> markers. A typical conflict will look like this:
+
+	<<<<<<< A
+	lines in file A
+	=======
+	lines in file B
+	>>>>>>> B
+
+If there are conflicts, the user should edit the result and delete one of
+the alternatives.  When `--ours`, `--theirs`, or `--union` option is in effect,
+however, these conflicts are resolved favouring lines from `<current>`,
+lines from `<other>`, or lines from both respectively.  The length of the
+conflict markers can be given with the `--marker-size` option.
+
+If `--object-id` is specified, exactly the same behavior occurs, except that
+instead of specifying what to merge as files, it is specified as a list of
+object IDs referring to blobs.
+
+The exit value of this program is negative on error, and the number of
+conflicts otherwise (truncated to 127 if there are more than that many
+conflicts). If the merge was clean, the exit value is 0.
+
+'git merge-file' is designed to be a minimal clone of RCS 'merge'; that is, it
+implements all of RCS 'merge''s functionality which is needed by
+linkgit:git[1].
+
+
+OPTIONS
+-------
+
+--object-id::
+	Specify the contents to merge as blobs in the current repository instead of
+	files.  In this case, the operation must take place within a valid repository.
++
+If the `-p` option is specified, the merged file (including conflicts, if any)
+goes to standard output as normal; otherwise, the merged file is written to the
+object store and the object ID of its blob is written to standard output.
+
+-L <label>::
+	This option may be given up to three times, and
+	specifies labels to be used in place of the
+	corresponding file names in conflict reports. That is,
+	`git merge-file -L x -L y -L z a b c` generates output that
+	looks like it came from files x, y and z instead of
+	from files a, b and c.
+
+-p::
+	Send results to standard output instead of overwriting
+	`<current>`.
+
+-q::
+	Quiet; do not warn about conflicts.
+
+--diff3::
+	Show conflicts in "diff3" style.
+
+--zdiff3::
+	Show conflicts in "zdiff3" style.
+
+--ours::
+--theirs::
+--union::
+	Instead of leaving conflicts in the file, resolve conflicts
+	favouring our (or their or both) side of the lines.
+
+--diff-algorithm={patience|minimal|histogram|myers}::
+	Use a different diff algorithm while merging. The current default is "myers",
+	but selecting more recent algorithm such as "histogram" can help
+	avoid mismerges that occur due to unimportant matching lines
+	(such as braces from distinct functions). See also
+	linkgit:git-diff[1] `--diff-algorithm`.
+
+EXAMPLES
+--------
+
+`git merge-file README.my README README.upstream`::
+
+	combines the changes of README.my and README.upstream since README,
+	tries to merge them and writes the result into README.my.
+
+`git merge-file -L a -L b -L c tmp/a123 tmp/b234 tmp/c345`::
+
+	merges tmp/a123 and tmp/c345 with the base tmp/b234, but uses labels
+	`a` and `c` instead of `tmp/a123` and `tmp/c345`.
+
+`git merge-file -p --object-id abc1234 def567 890abcd`::
+
+	combines the changes of the blob abc1234 and 890abcd since def567,
+	tries to merge them and writes the result to standard output
+
+GIT
+---
+Part of the linkgit:git[1] suite