revset: fix documentation for 'remote()' predicate

current documentation for 'remote()' predicate is wrong about
specification of parameters.

there are 3 patterns:

  # of
  param:  id:              remote:
  - 0     current branch   "defult" remote
  - 1     specified        "defult" remote
  - 2     specified        specified

mercurial/revset.py

@@ -745,7 +745,7 b' def public(repo, subset, x):'
     return [r for r in subset if repo._phaserev[r] == phases.public]
 
 def remote(repo, subset, x):
-    """``remote([id], [path])``
+    """``remote([id [,path]])``
     Local revision that corresponds to the given identifier in a
     remote repository, if present. Here, the '.' identifier is a
     synonym for the current local branch.
@@ -753,7 +753,7 b' def remote(repo, subset, x):'
 
     import hg # avoid start-up nasties
     # i18n: "remote" is a keyword
-    l = getargs(x, 0, 2, _("remote takes one or two arguments"))
+    l = getargs(x, 0, 2, _("remote takes one, two or no arguments"))
 
     q = '.'
     if len(l) > 0: