diff -r bbcf78c4ff90 -r 8f67735344ae mercurial/match.py
--- a/mercurial/match.py	Fri Dec 27 16:47:47 2019 +0100
+++ b/mercurial/match.py	Thu Dec 26 16:45:56 2019 -0500
@@ -182,35 +182,38 @@
                           the same directory
     '<something>' - a pattern of the specified default type
 
+    >>> def _match(root, *args, **kwargs):
+    ...     return match(util.localpath(root), *args, **kwargs)
+
     Usually a patternmatcher is returned:
-    >>> match(b'/foo', b'.', [b're:.*\.c$', b'path:foo/a', b'*.py'])
+    >>> _match(b'/foo', b'.', [b're:.*\.c$', b'path:foo/a', b'*.py'])
     <patternmatcher patterns='.*\\.c$|foo/a(?:/|$)|[^/]*\\.py$'>
 
     Combining 'patterns' with 'include' (resp. 'exclude') gives an
     intersectionmatcher (resp. a differencematcher):
-    >>> type(match(b'/foo', b'.', [b're:.*\.c$'], include=[b'path:lib']))
+    >>> type(_match(b'/foo', b'.', [b're:.*\.c$'], include=[b'path:lib']))
     <class 'mercurial.match.intersectionmatcher'>
-    >>> type(match(b'/foo', b'.', [b're:.*\.c$'], exclude=[b'path:build']))
+    >>> type(_match(b'/foo', b'.', [b're:.*\.c$'], exclude=[b'path:build']))
     <class 'mercurial.match.differencematcher'>
 
     Notice that, if 'patterns' is empty, an alwaysmatcher is returned:
-    >>> match(b'/foo', b'.', [])
+    >>> _match(b'/foo', b'.', [])
     <alwaysmatcher>
 
     The 'default' argument determines which kind of pattern is assumed if a
     pattern has no prefix:
-    >>> match(b'/foo', b'.', [b'.*\.c$'], default=b're')
+    >>> _match(b'/foo', b'.', [b'.*\.c$'], default=b're')
     <patternmatcher patterns='.*\\.c$'>
-    >>> match(b'/foo', b'.', [b'main.py'], default=b'relpath')
+    >>> _match(b'/foo', b'.', [b'main.py'], default=b'relpath')
     <patternmatcher patterns='main\\.py(?:/|$)'>
-    >>> match(b'/foo', b'.', [b'main.py'], default=b're')
+    >>> _match(b'/foo', b'.', [b'main.py'], default=b're')
     <patternmatcher patterns='main.py'>
 
     The primary use of matchers is to check whether a value (usually a file
     name) matches againset one of the patterns given at initialization. There
     are two ways of doing this check.
 
-    >>> m = match(b'/foo', b'', [b're:.*\.c$', b'relpath:a'])
+    >>> m = _match(b'/foo', b'', [b're:.*\.c$', b'relpath:a'])
 
     1. Calling the matcher with a file name returns True if any pattern
     matches that file name:
@@ -942,7 +945,7 @@
     The paths are remapped to remove/insert the path as needed:
 
     >>> from . import pycompat
-    >>> m1 = match(b'/root', b'', [b'a.txt', b'sub/b.txt'])
+    >>> m1 = match(util.localpath(b'/root'), b'', [b'a.txt', b'sub/b.txt'])
     >>> m2 = subdirmatcher(b'sub', m1)
     >>> m2(b'a.txt')
     False