git-log.txt: rewrite note on why "--" may be required

In its current form, the note talks about separating options from "branch names" and "refnames" in the same sentence. This is entirely inaccurate, as <revision range> need not be a set of branch names or ref names. Rewrite it to use the word "revision range", to be consistent with the SYNOPSIS. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ramkumar Ramachandra committed Apr 22, 2013 at 11:00 UTC 00200e9ea090cbf68c33e8d00c2976ee49972fdd
1 file changed +2 -2
Documentation/git-log.txt
+2 -2
@@ -77,8 +77,8 @@ produced by --stat etc.
77 Simplification" below for details and other simplification
78 modes.
79 +
80 -To prevent confusion with options and branch names, paths may need to
81 -be prefixed with "\-- " to separate them from options or refnames.
80 +Paths may need to be prefixed with "\-- " to separate them from
81 +options or the revision range, when confusion arises.
82
83 include::rev-list-options.txt[]
84