help: add quotes to a few commands we point to

I didn't know that 'hg help "revsets.x or y"' was valid syntax, so the
quoting is extra useful here to make it clear that that is an actual
command.

Differential Revision: https://phab.mercurial-scm.org/D4059

mercurial/fileset.py

@@ -67,7 +67,7 b' def negatematch(mctx, x):'
 
 def listmatch(mctx, *xs):
     raise error.ParseError(_("can't use a list in this context"),
-                           hint=_('see hg help "filesets.x or y"'))
+                           hint=_('see \'hg help "filesets.x or y"\''))
 
 def func(mctx, a, b):
     funcname = getsymbol(a)

mercurial/minifileset.py

@@ -71,7 +71,7 b' def _compile(tree):'
         raise error.ParseError(_("can't use negate operator in this context"))
     elif op == 'list':
         raise error.ParseError(_("can't use a list in this context"),
-                               hint=_('see hg help "filesets.x or y"'))
+                               hint=_('see \'hg help "filesets.x or y"\''))
     raise error.ProgrammingError('illegal tree: %r' % (tree,))
 
 def compile(text):

mercurial/revset.py

@@ -242,7 +242,7 b' def subscriptset(repo, subset, x, y, ord'
 
 def listset(repo, subset, *xs, **opts):
     raise error.ParseError(_("can't use a list in this context"),
-                           hint=_('see hg help "revsets.x or y"'))
+                           hint=_('see \'hg help "revsets.x or y"\''))
 
 def keyvaluepair(repo, subset, k, v, order):
     raise error.ParseError(_("can't use a key-value pair in this context"))

tests/test-fileset.t

@@ -118,7 +118,7 b' Test invalid syntax'
     (symbol 'b')
     (symbol 'c'))
   hg: parse error: can't use a list in this context
-  (see hg help "filesets.x or y")
+  (see 'hg help "filesets.x or y"')
   [255]
 
   $ fileset '"path":.'
@@ -298,7 +298,7 b' Test files properties'
   [255]
   $ fileset '(1k, 2k)'
   hg: parse error: can't use a list in this context
-  (see hg help "filesets.x or y")
+  (see 'hg help "filesets.x or y"')
   [255]
   $ fileset 'size(1k)'
   1k

tests/test-revset2.t

@@ -346,7 +346,7 b" test '0000' != '0' in `_list`"
 test ',' in `_list`
   $ log '0,1'
   hg: parse error: can't use a list in this context
-  (see hg help "revsets.x or y")
+  (see 'hg help "revsets.x or y"')
   [255]
   $ try '0,1,2'
   (list
@@ -354,7 +354,7 b" test ',' in `_list`"
     (symbol '1')
     (symbol '2'))
   hg: parse error: can't use a list in this context
-  (see hg help "revsets.x or y")
+  (see 'hg help "revsets.x or y"')
   [255]
 
 test that chained `or` operations make balanced addsets