theirs;;
This is opposite of 'ours'.
-subtree[=path];;
+patience;;
+ With this option, 'merge-recursive' spends a little extra time
+ to avoid mismerges that sometimes occur due to unimportant
+ matching lines (e.g., braces from distinct functions). Use
+ this when the branches to be merged have diverged wildly.
+ See also linkgit:git-diff[1] `--patience`.
+
+ignore-space-change;;
+ignore-all-space;;
+ignore-space-at-eol;;
+ Treats lines with the indicated type of whitespace change as
+ unchanged for the sake of a three-way merge. Whitespace
+ changes mixed with other changes to a line are not ignored.
+ See also linkgit:git-diff[1] `-b`, `-w`, and
+ `--ignore-space-at-eol`.
++
+* If 'their' version only introduces whitespace changes to a line,
+ 'our' version is used;
+* If 'our' version introduces whitespace changes but 'their'
+ version includes a substantial change, 'their' version is used;
+* Otherwise, the merge proceeds in the usual way.
+
+renormalize;;
+ This runs a virtual check-out and check-in of all three stages
+ of a file when resolving a three-way merge. This option is
+ meant to be used when merging branches with different clean
+ filters or end-of-line normalization rules. See "Merging
+ branches with differing checkin/checkout attributes" in
+ linkgit:gitattributes[5] for details.
+
+no-renormalize;;
+ Disables the `renormalize` option. This overrides the
+ `merge.renormalize` configuration variable.
+
+rename-threshold=<n>;;
+ Controls the similarity threshold used for rename detection.
+ See also linkgit:git-diff[1] `-M`.
+
+subtree[=<path>];;
This option is a more advanced form of 'subtree' strategy, where
the strategy makes a guess on how two trees must be shifted to
match with each other when merging. Instead, the specified path