rebase: use @{upstream} if no upstream specified

diff --git a/contrib/hooks/post-receive-email b/contrib/hooks/post-receive-email
index f99ea9585014face001849aeeefa5f20e79bc1e2..21989fc6ab84c0503cdc9418673d9d0bf06f9d49 100755 (executable)
--- a/contrib/hooks/post-receive-email
+++ b/contrib/hooks/post-receive-email
@@ -709,7 +709,7 @@ if [ -z "$GIT_DIR" ]; then
        exit 1
 fi
 
-projectdesc=$(sed -ne '1p' "$GIT_DIR/description")
+projectdesc=$(sed -ne '1p' "$GIT_DIR/description" 2>/dev/null)
 # Check if the description is unchanged from it's default, and shorten it to
 # a more manageable length if it is
 if expr "$projectdesc" : "Unnamed repository.*$" >/dev/null