format-patch: add --range-diff option to embed diff in cover letter

diff --git a/Documentation/Makefile b/Documentation/Makefile
index fa9e5c0acd762d3623a5b436349b8d87e41aeb32..d079d7c73aca1fd91ac18045aab46b2446f43a16 100644 (file)
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -185,7 +185,7 @@ ASCIIDOC = asciidoctor
 ASCIIDOC_CONF =
 ASCIIDOC_HTML = xhtml5
 ASCIIDOC_DOCBOOK = docbook45
-ASCIIDOC_EXTRA += -acompat-mode
+ASCIIDOC_EXTRA += -acompat-mode -atabsize=8
 ASCIIDOC_EXTRA += -I. -rasciidoctor-extensions
 ASCIIDOC_EXTRA += -alitdd='&\#x2d;&\#x2d;'
 DBLATEX_COMMON =