errors: raise InputError on recursive template definition

Differential Revision: https://phab.mercurial-scm.org/D9602

mercurial/templater.py

@@ -451,7 +451,7 b' def gettemplate(exp, context):'
 
 
 def _runrecursivesymbol(context, mapping, key):
-    raise error.Abort(_(b"recursive reference '%s' in template") % key)
+    raise error.InputError(_(b"recursive reference '%s' in template") % key)
 
 
 def buildtemplate(exp, context):

tests/test-template-basic.t

@@ -265,7 +265,7 b' Check that recursive reference does not '
   > EOF
   $ hg log --style ./issue4758
   abort: recursive reference 'changeset' in template
-  [255]
+  [10]
 
  not a recursion if a keyword of the same name exists: