format-patch: make sure header and body are separated.

Since log message in a commit object is defined to be binary
blob, it could be something without an empty line between the
title line and the body text.  Be careful to format such into
a form suitable for e-mail submission.  There must be an empty
line between the headers and the body.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/git-format-patch.sh b/git-format-patch.sh
index 01508e3..daa3cae 100755 (executable)
--- a/git-format-patch.sh
+++ b/git-format-patch.sh
@@ -210,6 +210,8 @@ Date: '"$ad"
        }
 
        mailScript="$mailScript"'
+       a\
+
        : body
        p
        n