Docs: Use "-l::\n--long\n" format in OPTIONS sections

The OPTIONS section of a documentation file contains a list
of the options a git command accepts.

Currently there are several variants to describe the case that
different options (almost) do the same in the OPTIONS section.

Some are:

 -f, --foo::
 -f|--foo::
 -f | --foo::

But AsciiDoc has the special form:

 -f::
 --foo::

This patch applies this form to the documentation of the whole git suite,
and removes useless em-dash prevention, so \--foo becomes --foo.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/Documentation/git-blame.txt b/Documentation/git-blame.txt
index 7900f33d4b..8f4fb46685 100644
--- a/Documentation/git-blame.txt
+++ b/Documentation/git-blame.txt
@@ -52,12 +52,14 @@ include::blame-options.txt[]
 	a certain threshold for git-blame to consider those lines
 	of code to have been moved.
 
--f, --show-name::
+-f::
+--show-name::
 	Show filename in the original commit.  By default
 	filename is shown if there is any line that came from a
 	file with different name, due to rename detection.
 
--n, --show-number::
+-n::
+--show-number::
 	Show line number in the original commit (Default: off).
 
 -s::