diff: --indent-heuristic is no longer experimental

This heuristic has been the default since 2.14 so we should not confuse our
users by saying that it's experimental and off by default.

Signed-off-by: Carlos Martín Nieto <cmn@dwim.me>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/diff-heuristic-options.txt

@@ -1,5 +0,0 @@
---indent-heuristic::
---no-indent-heuristic::
-	These are to help debugging and tuning experimental heuristics
-	(which are off by default) that shift diff hunk boundaries to
-	make patches easier to read.

Documentation/diff-options.txt

@@ -63,7 +63,12 @@ ifndef::git-format-patch[]
 	Synonym for `-p --raw`.
 endif::git-format-patch[]
 
-include::diff-heuristic-options.txt[]
+--indent-heuristic::
+	Enable the heuristic that shift diff hunk boundaries to make patches
+	easier to read. This is the default.
+
+--no-indent-heuristic::
+	Disable the indent heuristic.
 
 --minimal::
 	Spend extra time to make sure the smallest possible

Documentation/git-annotate.txt

@@ -23,7 +23,6 @@ familiar command name for people coming from other SCM systems.
 OPTIONS
 -------
 include::blame-options.txt[]
-include::diff-heuristic-options.txt[]
 
 SEE ALSO
 --------

Documentation/git-blame.txt

@@ -89,8 +89,6 @@ include::blame-options.txt[]
 	abbreviated object name, use <n>+1 digits. Note that 1 column
 	is used for a caret to mark the boundary commit.
 
-include::diff-heuristic-options.txt[]
-
 
 THE PORCELAIN FORMAT
 --------------------