bpo-30380: Fix Sphinx 1.6.1 warnings. (#1613)

* Use explicit numbering for footnotes referred by explicit number.
* Restore missed footnote reference in stdtypes.rst.
* Fix literal strings formatting in howto/urllib2.rst.
* Update susp-ignored.csv for zipapp.rst.
* Fix suspicious mark up in Misc/NEWS.

Author: serhiy-storchaka

Doc/howto/urllib2.rst

@@ -34,8 +34,8 @@ handling common situations - like basic authentication, cookies, proxies and so
 on. These are provided by objects called handlers and openers.
 
 urllib.request supports fetching URLs for many "URL schemes" (identified by the string
-before the ":" in URL - for example "ftp" is the URL scheme of
-"ftp://python.org/") using their associated network protocols (e.g. FTP, HTTP).
+before the ``":"`` in URL - for example ``"ftp"`` is the URL scheme of
+``"ftp://python.org/"``) using their associated network protocols (e.g. FTP, HTTP).
 This tutorial focuses on the most common case, HTTP.
 
 For straightforward situations *urlopen* is very easy to use. But as soon as you
@@ -511,10 +511,10 @@ than the URL you pass to .add_password() will also match. ::
 
 ``top_level_url`` is in fact *either* a full URL (including the 'http:' scheme
 component and the hostname and optionally the port number)
-e.g. "http://example.com/" *or* an "authority" (i.e. the hostname,
-optionally including the port number) e.g. "example.com" or "example.com:8080"
+e.g. ``"http://example.com/"`` *or* an "authority" (i.e. the hostname,
+optionally including the port number) e.g. ``"example.com"`` or ``"example.com:8080"``
 (the latter example includes a port number).  The authority, if present, must
-NOT contain the "userinfo" component - for example "joe:[email protected]" is
+NOT contain the "userinfo" component - for example ``"joe:[email protected]"`` is
 not correct.
 
 

Doc/library/pyexpat.rst

@@ -869,7 +869,7 @@ The ``errors`` module has the following attributes:
 
 .. rubric:: Footnotes
 
-.. [#] The encoding string included in XML output should conform to the
+.. [1] The encoding string included in XML output should conform to the
    appropriate standards. For example, "UTF-8" is valid, but "UTF8" is
    not. See https://www.w3.org/TR/2006/REC-xml11-20060816/#NT-EncodingDecl
    and https://www.iana.org/assignments/character-sets/character-sets.xhtml.

Doc/library/stdtypes.rst

@@ -829,7 +829,7 @@ restrictions imposed by *s*.
 
 The ``in`` and ``not in`` operations have the same priorities as the
 comparison operations. The ``+`` (concatenation) and ``*`` (repetition)
-operations have the same priority as the corresponding numeric operations.
+operations have the same priority as the corresponding numeric operations. [3]_
 
 .. index::
    triple: operations on; sequence; types

Doc/library/xml.dom.minidom.rst

@@ -248,7 +248,7 @@ utility to most DOM users.
 
 .. rubric:: Footnotes
 
-.. [#] The encoding name included in the XML output should conform to
+.. [1] The encoding name included in the XML output should conform to
    the appropriate standards. For example, "UTF-8" is valid, but
    "UTF8" is not valid in an XML document's declaration, even though
    Python accepts it as an encoding name.

Doc/library/xml.etree.elementtree.rst

@@ -1192,7 +1192,7 @@ Exceptions
 
 .. rubric:: Footnotes
 
-.. [#] The encoding string included in XML output should conform to the
+.. [1] The encoding string included in XML output should conform to the
    appropriate standards.  For example, "UTF-8" is valid, but "UTF8" is
    not.  See https://www.w3.org/TR/2006/REC-xml11-20060816/#NT-EncodingDecl
    and https://www.iana.org/assignments/character-sets/character-sets.xhtml.

Doc/tools/susp-ignored.csv

@@ -106,7 +106,7 @@ howto/pyporting,,::,Programming Language :: Python :: 2
 howto/pyporting,,::,Programming Language :: Python :: 3
 howto/regex,,::,
 howto/regex,,:foo,(?:foo)
-howto/urllib2,,:password,"for example ""joe:[email protected]"""
+howto/urllib2,,:password,"""joe:[email protected]"""
 library/audioop,,:ipos,"# factor = audioop.findfactor(in_test[ipos*2:ipos*2+len(out_test)],"
 library/bisect,32,:hi,all(val >= x for val in a[i:hi])
 library/bisect,42,:hi,all(val > x for val in a[i:hi])
@@ -316,8 +316,8 @@ library/xml.etree.elementtree,,:actor,"for actor in root.findall('real_person:ac
 library/xml.etree.elementtree,,:name,"name = actor.find('real_person:name', ns)"
 library/xml.etree.elementtree,,:character,"for char in actor.findall('role:character', ns):"
 library/zipapp,,:main,"$ python -m zipapp myapp -m ""myapp:main"""
-library/zipapp,,:fn,"argument should have the form ""pkg.mod:fn"", where ""pkg.mod"" is a"
-library/zipapp,,:callable,"""pkg.module:callable"" and the archive will be run by importing"
+library/zipapp,,:fn,"pkg.mod:fn"
+library/zipapp,,:callable,"pkg.module:callable"
 library/stdtypes,,::,>>> m[::2].tolist()
 library/sys,,`,# ``wrapper`` creates a ``wrap(coro)`` coroutine:
 whatsnew/3.5,,:root,'WARNING:root:warning\n'
@@ -326,7 +326,6 @@ whatsnew/3.5,,::,>>> addr6 = ipaddress.IPv6Address('::1')
 whatsnew/3.5,,:root,ERROR:root:exception
 whatsnew/3.5,,:exception,ERROR:root:exception
 whatsnew/changelog,,:version,import sys; I = version[:version.index(' ')]
-whatsnew/changelog,,`,"for readability (was ""`"")."
 whatsnew/changelog,,:end,str[start:end]
 library/binascii,,`,'`'
 library/uu,,`,'`'

Misc/NEWS

@@ -769,7 +769,7 @@ Library
   non-None value is passed to it.send(val).
 
 - Issue #27025: Generated names for Tkinter widgets now start by the "!" prefix
-  for readability (was "`").
+  for readability.
 
 - Issue #25464: Fixed HList.header_exists() in tkinter.tix module by addin
   a workaround to Tix library bug.
@@ -1624,7 +1624,7 @@ Library
   non-None value is passed to it.send(val).
 
 - Issue #27025: Generated names for Tkinter widgets now start by the "!" prefix
-  for readability (was "`").
+  for readability.
 
 - Issue #25464: Fixed HList.header_exists() in tkinter.tix module by addin
   a workaround to Tix library bug.