configitems: register the 'convert.git.findcopiesharder' config

hgext/convert/__init__.py

@@ -49,6 +49,9 b" configitem('convert', 'git.committeracti"
 configitem('convert', 'git.extrakeys',
     default=list,
 )
+configitem('convert', 'git.findcopiesharder',
+    default=False,
+)
 
 # Commands definition was moved elsewhere to ease demandload job.
 

hgext/convert/git.py

@@ -86,8 +86,7 b' class convert_git(common.converter_sourc'
             raise error.Abort(_('similarity must be between 0 and 100'))
         if similarity > 0:
             self.simopt = ['-C%d%%' % similarity]
-            findcopiesharder = ui.configbool('convert', 'git.findcopiesharder',
-                                             False)
+            findcopiesharder = ui.configbool('convert', 'git.findcopiesharder')
             if findcopiesharder:
                 self.simopt.append('--find-copies-harder')