error: refactor OutOfBandError to inherit from HintException

mercurial/error.py

@@ -78,13 +78,9 b' class ResponseExpected(Abort):'
         from .i18n import _
         Abort.__init__(self, _('response expected'))
 
-class OutOfBandError(Exception):
+class OutOfBandError(HintException):
     """Exception raised when a remote repo reports failure"""
 
-    def __init__(self, *args, **kw):
-        Exception.__init__(self, *args)
-        self.hint = kw.get('hint')
-
 class ParseError(Exception):
     """Raised when parsing config files and {rev,file}sets (msg[, pos])"""