configitem: reorder items in the 'server' section

Keeping things alphabetically sorted.

mercurial/configitems.py

@@ -936,16 +936,16 b" coreconfigitem('server', 'concurrent-pus"
 coreconfigitem('server', 'disablefullbundle',
     default=False,
 )
-coreconfigitem('server', 'streamunbundle',
-    default=False,
+coreconfigitem('server', 'maxhttpheaderlen',
+    default=1024,
 )
 coreconfigitem('server', 'pullbundle',
     default=False,
 )
-coreconfigitem('server', 'maxhttpheaderlen',
-    default=1024,
+coreconfigitem('server', 'preferuncompressed',
+    default=False,
 )
-coreconfigitem('server', 'preferuncompressed',
+coreconfigitem('server', 'streamunbundle',
     default=False,
 )
 coreconfigitem('server', 'uncompressed',