The Debian packaging of debug-me is maintained in git, using the
merging workflow described in dgit-maint-merge(7).  There isn't a
patch queue that can be represented as a quilt series.

A detailed breakdown of the changes is available from their canonical
representation - git commits in the packaging repository.  For
example, to see the changes made by the Debian maintainer in the first
upload of upstream version 1.2.3, you could use:

    % git clone https://git.dgit.debian.org/debug-me
    % cd debug-me
    % git log --oneline 1.2.3..debian/1.2.3-1 -- . ':!debian'

(If you have dgit, use `dgit clone debug-me`, rather than plain `git
clone`.)

A single combined diff, containing all the changes, follows.
--- debug-me-1.20170505.orig/CHANGELOG
+++ debug-me-1.20170505/CHANGELOG
@@ -1,3 +1,15 @@
+debug-me (1.20170506) UNRELEASED; urgency=medium
+
+  * Server: Use "postmaster" as default --from-email address
+    rather than "unknown@server".
+  * Server: DEBUG_ME_FROM_EMAIL can be used to specify the --from-email.
+    This is used in debug-me.default to encourage configuring it.
+    Thanks, Sean Whitton.
+  * Avoid crash when --use-server is given an url that does not
+    include a path.
+
+ -- Joey Hess <id@joeyh.name>  Tue, 09 May 2017 11:45:41 -0400
+
 debug-me (1.20170505) unstable; urgency=medium
 
   * First release of debug-me.
--- debug-me-1.20170505.orig/Server.hs
+++ debug-me-1.20170505/Server.hs
@@ -33,6 +33,7 @@ import System.IO
 import System.Directory
 import System.Mem.Weak
 import Network.Mail.Mime
+import System.Environment
 
 type ServerState = M.Map SessionID Session
 
@@ -95,7 +96,9 @@ closeSession :: Session -> STM ()
 closeSession (Session bchan _ _) = closeTMChan bchan
 
 server :: ServerOpts -> IO ()
-server o = runSettings settings . app o =<< newServerState
+server o = do
+	o' <- checkEnv o
+	runSettings settings . app o' =<< newServerState
   where
 	settings =
 		-- Prefer IPv6 but allow IPv4 as well
@@ -105,6 +108,12 @@ server o = runSettings settings . app o
 		setPort (serverPort o) $
 		defaultSettings
 
+checkEnv :: ServerOpts -> IO ServerOpts
+checkEnv o = go <$> lookupEnv "DEBUG_ME_FROM_EMAIL"
+  where
+	go Nothing = o
+	go (Just email) = o { serverEmail = Just (T.pack email) }
+
 app :: ServerOpts -> TVar ServerState -> Application
 app o ssv = websocketsOr connectionOptions (websocketApp o ssv) webapp
   where
@@ -262,7 +271,7 @@ emailSessionLog email o logfile
 	| otherwise = return ()
   where
 	to = Address Nothing email
-	from = Address Nothing $ fromMaybe "unknown@server" (serverEmail o)
+	from = Address Nothing $ fromMaybe "postmaster" (serverEmail o)
 	subject = "Your recent debug-me session"
 	body = "Attached is the log from your recent debug-me session."
 	isemail = "@" `T.isInfixOf` email
--- debug-me-1.20170505.orig/WebSockets.hs
+++ debug-me-1.20170505/WebSockets.hs
@@ -144,7 +144,9 @@ runClientApp serverurl app = do
 	port = case uriPort serverauth of
 		(':':s) -> fromMaybe 80 (readMaybe s)
 		_ -> 80
-	endpoint = uriPath serverurl
+	endpoint = case uriPath serverurl of
+		[] -> "/"
+		p -> p
 
 	catchconnclosed ConnectionClosed = Just ()
 	catchconnclosed _ = Nothing
--- debug-me-1.20170505.orig/debug-me.1
+++ debug-me-1.20170505/debug-me.1
@@ -88,6 +88,8 @@ Specify a port for the debug-me server t
 .IP "--from-email address"
 The server will email session logs to users. It's a good idea to
 provide a real email address, otherwise a dummy one will be used.
+You can also set the enviroment variable DEBUG_ME_FROM_EMAIL to configure
+this.
 .IP "--delete-old-logs"
 Normally the server will retain old log files so that users and developers
 can refer to them. This option makes it delete the log file once the
--- debug-me-1.20170505.orig/debug-me.default
+++ debug-me-1.20170505/debug-me.default
@@ -1,2 +1,6 @@
+# Configure the email address that debug-me uses when emailing logs to
+# users.
+DEBUG_ME_FROM_EMAIL=postmaster
+
 # Parameters to pass to debug-me when it's started as a daemon.
 DAEMON_PARAMS="--server /var/log/debug-me/ --delete-old-logs"
--- debug-me-1.20170505.orig/debug-me.init
+++ debug-me-1.20170505/debug-me.init
@@ -33,7 +33,7 @@ case "$1" in
 		start-stop-daemon --start --quiet --oknodo \
 			--background --no-close \
 			--pidfile "$PIDFILE" --make-pidfile \
-			--chuid debug-me:debug-me \
+			--chuid _debug-me:_debug-me \
 			--exec "$DAEMON" -- $DAEMON_PARAMS \
 			> /var/log/debug-me.log
 		log_end_msg $?
--- debug-me-1.20170505.orig/debug-me.service
+++ debug-me-1.20170505/debug-me.service
@@ -8,8 +8,8 @@ EnvironmentFile=-/etc/default/debug-me
 ExecStart=/usr/bin/debug-me $DAEMON_PARAMS
 InaccessiblePaths=/home /etc
 ReadWritePaths=/var/log/debug-me
-User=debug-me
-Group=debug-me
+User=_debug-me
+Group=_debug-me
 StandardInput=null
 StandardOutput=journal
 StandardError=journal