configitems: register the 'convert.hg.saverev' config

hgext/convert/__init__.py

@@ -76,6 +76,9 b" configitem('convert', 'hg.ignoreerrors',"
 configitem('convert', 'hg.revs',
     default=None,
 )
+configitem('convert', 'hg.saverev',
+    default=False,
+)
 
 # Commands definition was moved elsewhere to ease demandload job.
 

hgext/convert/hg.py

@@ -448,7 +448,7 b' class mercurial_source(common.converter_'
         common.converter_source.__init__(self, ui, path, revs)
         self.ignoreerrors = ui.configbool('convert', 'hg.ignoreerrors')
         self.ignored = set()
-        self.saverev = ui.configbool('convert', 'hg.saverev', False)
+        self.saverev = ui.configbool('convert', 'hg.saverev')
         try:
             self.repo = hg.repository(self.ui, path)
             # try to provoke an exception if this isn't really a hg