sshpeer: add a configurable hint for the ssh error message Adding a possibility to configure error hint to be shown in the case of problems with SSH. Example of such hint can be "Please see http://company/internalwiki/ssh.html". Test Plan: - Ran hg pull with broken link and verified the output has no hint by default: ``` pulling from ssh://brokenrepository.com//repo remote: ssh: Could not resolve hostname brokenrepository.com: Name or service not known abort: no suitable response from remote hg! ``` - Run hg pull --config ui.ssherrorhint="Please see http://company/internalwiki/ssh.html": ``` pulling from ssh://brokenrepository.com//repo remote: ssh: Could not resolve hostname brokenrepository.com: Name or service not known abort: no suitable response from remote hg! (Please see http://company/internalwiki/ssh.html) ``` Differential Revision: https://phab.mercurial-scm.org/D1431

--- a/mercurial/sshpeer.py	Thu Nov 16 15:01:21 2017 -0800
+++ b/mercurial/sshpeer.py	Mon Nov 20 01:40:26 2017 -0800
@@ -204,8 +204,9 @@
         self._pipeo = doublepipe(self.ui, self._pipeo, self._pipee)
 
         def badresponse():
-            self._abort(error.RepoError(_('no suitable response from '
-                                          'remote hg')))
+            msg = _("no suitable response from remote hg")
+            hint = self.ui.config("ui", "ssherrorhint")
+            self._abort(error.RepoError(msg, hint=hint))
 
         try:
             # skip any noise generated by remote shell