atom ids are identified as links

What steps will reproduce the problem?

>>> import feedparser
>>> atomfd = 
feedparser.parse('http://bldgblog.blogspot.com/feeds/posts/default')
>>> atomfd.entries[0].guid
u'tag:blogger.com,1999:blog-8663346.post-6589476380961282518'
>>> atomfd.entries[0].guidislink     
True
>>> rssfeed = 
feedparser.parse('http://bldgblog.blogspot.com/feeds/posts/default?alt=rss')
>>> rssfeed.entries[0].guid
u'tag:blogger.com,1999:blog-8663346.post-6589476380961282518'
>>> rssfeed.entries[0].guidislink
False

What is the expected output? What do you see instead?

I expect guidislink to return False for the atom feed.

What version of the product are you using? On what operating system?

Python 2.7.5 (default, Oct 15 2013, 11:31:09) 
[GCC 4.2.1 20070719 ] on openbsd5
>>> feedparser.__version__
'5.1.3'

Original issue reported on code.google.com by ted.unan...@gmail.com on 3 Nov 2013 at 7:39

Start by reproducing the reported difference with feedparser.parse using the Atom and RSS feed URLs shown, then inspect how guid and guidislink are derived. Done means the Atom example reports guidislink as False while the RSS behavior remains unchanged; add or update a regression test for both cases if the project’s test location can be identified.