config.txt: move blame.* to a separate file

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/config.txt

@@ -299,27 +299,7 @@ include::config/am.txt[]
 
 include::config/apply.txt[]
 
-blame.blankBoundary::
-	Show blank commit object name for boundary commits in
-	linkgit:git-blame[1]. This option defaults to false.
-
-blame.coloring::
-	This determines the coloring scheme to be applied to blame
-	output. It can be 'repeatedLines', 'highlightRecent',
-	or 'none' which is the default.
-
-blame.date::
-	Specifies the format used to output dates in linkgit:git-blame[1].
-	If unset the iso format is used. For supported values,
-	see the discussion of the `--date` option at linkgit:git-log[1].
-
-blame.showEmail::
-	Show the author email instead of author name in linkgit:git-blame[1].
-	This option defaults to false.
-
-blame.showRoot::
-	Do not treat root commits as boundaries in linkgit:git-blame[1].
-	This option defaults to false.
+include::config/blame.txt[]
 
 branch.autoSetupMerge::
 	Tells 'git branch' and 'git checkout' to set up new branches

Documentation/config/blame.txt

@@ -0,0 +1,21 @@
+blame.blankBoundary::
+	Show blank commit object name for boundary commits in
+	linkgit:git-blame[1]. This option defaults to false.
+
+blame.coloring::
+	This determines the coloring scheme to be applied to blame
+	output. It can be 'repeatedLines', 'highlightRecent',
+	or 'none' which is the default.
+
+blame.date::
+	Specifies the format used to output dates in linkgit:git-blame[1].
+	If unset the iso format is used. For supported values,
+	see the discussion of the `--date` option at linkgit:git-log[1].
+
+blame.showEmail::
+	Show the author email instead of author name in linkgit:git-blame[1].
+	This option defaults to false.
+
+blame.showRoot::
+	Do not treat root commits as boundaries in linkgit:git-blame[1].
+	This option defaults to false.