record: use uisetup instead of extsetup to register qrecord

New commands should be registered in uisetup so that other extensions
have a change of wrapping them in extsetup.

hgext/record.py

@@ -531,7 +531,7 b' cmdtable = {'
 }
 
 
-def extsetup():
+def uisetup(ui):
     try:
         mq = extensions.find('mq')
     except KeyError: