[PATCH] Fix over-simplified documentation for 'git log -z'

["Björn Gustavsson" <bgustavsson@gmail.com>]

In commit 64485b4a, the documentation for 'git log -z' was
simplified too much. The -z option actually changes the behavior
of 'git log' in two ways: commits will be ended with a NUL
instead of a LF (correctly documented) and the --raw and
--numstat will have NUL as field terminators (omitted in
the documentation for 'git log').

Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com>
---
I wrongly assumed that 'git log' ignores the --raw
and --numstat options, because I tested it in a repository
with only merge commits. They do have an effect for
plain commits, and consequently -z will modify their
behavior for 'git log' too.

This patch applies on 'next'.

 Documentation/diff-options.txt |   12 +++++++-----
 1 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 18366b1..8707d0e 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -87,19 +87,21 @@ endif::git-format-patch[]
 ifndef::git-format-patch[]
 
 -z::
+ifdef::git-log[]
+	Separate the commits with NULs instead of with new newlines.
++
+Also, when `--raw` or `--numstat` has been given, do not munge
+pathnames and use NULs as output field terminators.
+endif::git-log[]
 ifndef::git-log[]
 	When `--raw` or `--numstat` has been given, do not munge
 	pathnames and use NULs as output field terminators.
+endif::git-log[]
 +
 Without this option, each pathname output will have TAB, LF, double quotes,
 and backslash characters replaced with `\t`, `\n`, `\"`, and `\\`,
 respectively, and the pathname will be enclosed in double quotes if
 any of those replacements occurred.
-endif::git-log[]
-
-ifdef::git-log[]
-	Separate the commits with NULs instead of with new newlines.
-endif::git-log[]
 
 --name-only::
 	Show only names of changed files.
-- 
1.6.5.3.298.g39add