test: fix test-http-bad-server with current python 2.7 stable

test: fix test-http-bad-server with current python 2.7

https://github.com/python/cpython/pull/2825 changed the exception
message for empty http status line.

Differential Revision: https://phab.mercurial-scm.org/D5412

--- a/tests/test-http-bad-server.t	Sun Dec 09 23:48:50 2018 -0500
+++ b/tests/test-http-bad-server.t	Wed Dec 12 06:41:19 2018 +0100
@@ -69,7 +69,7 @@
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
-  abort: error: bad HTTP status line: ''
+  abort: error: bad HTTP status line: * (glob)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
@@ -85,7 +85,7 @@
   $ hg serve --config badserver.closeafterrecvbytes=40 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
   $ hg clone http://localhost:$HGPORT/ clone
-  abort: error: bad HTTP status line: ''
+  abort: error: bad HTTP status line: * (glob)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
@@ -102,7 +102,7 @@
   $ hg serve --config badserver.closeafterrecvbytes=210,223 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
   $ hg clone http://localhost:$HGPORT/ clone
-  abort: error: bad HTTP status line: ''
+  abort: error: bad HTTP status line: * (glob)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
@@ -141,7 +141,7 @@
   $ cat hg.pid > $DAEMON_PIDS
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
-  abort: error: bad HTTP status line: ''
+  abort: error: bad HTTP status line: * (glob)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
@@ -200,7 +200,7 @@
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
-  abort: error: bad HTTP status line: ''
+  abort: error: bad HTTP status line: * (glob)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS