--log-size was added in commit 9fa3465, and the commit message contained
a satisfactory explanation; however, the man page entry for it was
unclear and cryptic.

Thanks-to: Jonathan Nieder <>
Signed-off-by: Jason St. John <>
This is effectively a resubmit of my previous patch here:

Thanks to Jonathan Nieder for writing the text used in this commit:

 Documentation/git-log.txt | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Documentation/git-log.txt b/Documentation/git-log.txt
index 34097ef..a5de513 100644
--- a/Documentation/git-log.txt
+++ b/Documentation/git-log.txt
@@ -56,11 +56,11 @@ Note that this affects all diff-based output types, e.g. 
 produced by --stat etc.
-       Before the log message print out its size in bytes. Intended
-       mainly for porcelain tools consumption. If Git is unable to
-       produce a valid value size is set to zero.
-       Note that only message is considered, if also a diff is shown
-       its size is not included.
+       Include a line ``log size <number>'' in the output for each commit,
+       where <number> is the length of that commit's message in bytes.
+       Intended to speed up tools that read log messages from `git log`
+       output by allowing them to allocate space in advance.
 -L <start>,<end>:<file>::
 -L :<regex>:<file>::

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