Sync with maint

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index bbfe8f8f35316462f02864722fdc3c253a16cd01..b8a9b863751cc7fa4e763e61926982359633acc8 100644 (file)
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -55,6 +55,26 @@ endif::git-format-patch[]
 --histogram::
        Generate a diff using the "histogram diff" algorithm.
 
+--diff-algorithm={patience|minimal|histogram|myers}::
+       Choose a diff algorithm. The variants are as follows:
++
+--
+`default`, `myers`;;
+       The basic greedy diff algorithm. Currently, this is the default.
+`minimal`;;
+       Spend extra time to make sure the smallest possible diff is
+       produced.
+`patience`;;
+       Use "patience diff" algorithm when generating patches.
+`histogram`;;
+       This algorithm extends the patience algorithm to "support
+       low-occurrence common elements".
+--
++
+For instance, if you configured diff.algorithm variable to a
+non-default value and want to use the default one, then you
+have to use `--diff-algorithm=default` option.
+
 --stat[=<width>[,<name-width>[,<count>]]]::
        Generate a diffstat. By default, as much space as necessary
        will be used for the filename part, and the rest for the graph
@@ -283,7 +303,7 @@ few lines that happen to match textually as the context, but as a
 single deletion of everything old followed by a single insertion of
 everything new, and the number `m` controls this aspect of the -B
 option (defaults to 60%). `-B/70%` specifies that less than 30% of the
-original should remain in the result for git to consider it a total
+original should remain in the result for Git to consider it a total
 rewrite (i.e. otherwise the resulting patch will be a series of
 deletion and insertion mixed together with context lines).
 +
@@ -307,7 +327,7 @@ ifdef::git-log[]
 endif::git-log[]
        If `n` is specified, it is a threshold on the similarity
        index (i.e. amount of addition/deletions compared to the
-       file's size). For example, `-M90%` means git should consider a
+       file's size). For example, `-M90%` means Git should consider a
        delete/add pair to be a rename if more than 90% of the file
        hasn't changed.  Without a `%` sign, the number is to be read as
        a fraction, with a decimal point before it.  I.e., `-M5` becomes
@@ -460,7 +480,7 @@ endif::git-format-patch[]
 
 --ignore-submodules[=<when>]::
        Ignore changes to submodules in the diff generation. <when> can be
-       either "none", "untracked", "dirty" or "all", which is the default
+       either "none", "untracked", "dirty" or "all", which is the default.
        Using "none" will consider the submodule modified when it either contains
        untracked or modified files or its HEAD differs from the commit recorded
        in the superproject and can be used to override any settings of the