[PATCH 6/7] pack-protocol.txt: Mark pushee field as optional

[Dave Borowitz <dborowitz@google.com>]

send-pack.c omits this field when args->url is null or empty. Fix the
protocol specification to match reality.

Signed-off-by: Dave Borowitz <dborowitz@google.com>
---
 Documentation/technical/pack-protocol.txt | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/technical/pack-protocol.txt b/Documentation/technical/pack-protocol.txt
index f37dcf1..98e512d 100644
--- a/Documentation/technical/pack-protocol.txt
+++ b/Documentation/technical/pack-protocol.txt
@@ -495,7 +495,7 @@ references.
   push-cert         = PKT-LINE("push-cert" NUL capability-list LF)
 		      PKT-LINE("certificate version 0.1" LF)
 		      PKT-LINE("pusher" SP push-cert-ident LF)
-		      PKT-LINE("pushee" SP url LF)
+		      [PKT-LINE("pushee" SP url LF)]
 		      PKT-LINE("nonce" SP nonce LF)
 		      PKT-LINE(LF)
 		      *PKT-LINE(command LF)
@@ -554,7 +554,8 @@ Currently, the following header fields are defined:
 `pushee` url::
 	The repository URL (anonymized, if the URL contains
 	authentication material) the user who ran `git push`
-	intended to push into.
+	intended to push into. This field is optional, and included at
+	the client's discretion.
 
 `nonce` nonce::
 	The 'nonce' string the receiving repository asked the
-- 
2.4.3.573.g4eafbef