config: make repo optional again

mercurial/commands.py

@@ -5877,7 +5877,7 b' def version_(ui):'
 norepo = ("clone init version help debugcommands debugcomplete"
           " debugdate debuginstall debugfsinfo debugpushkey debugwireargs"
           " debugknown debuggetbundle debugbundle")
-optionalrepo = ("identify paths serve showconfig debugancestor debugdag"
+optionalrepo = ("identify paths serve config showconfig debugancestor debugdag"
                 " debugdata debugindex debugindexdot debugrevlog")
 inferrepo = ("add addremove annotate cat commit diff grep forget log parents"
              " remove resolve status debugwalk")

tests/test-basic.t

@@ -1,5 +1,12 b''
 Create a repository:
 
+  $ hg config
+  defaults.backout=-d "0 0"
+  defaults.commit=-d "0 0"
+  defaults.shelve=--date "0 0"
+  defaults.tag=-d "0 0"
+  ui.slash=True
+  ui.interactive=False
   $ hg init t
   $ cd t