cyberdyne - 8:53 am on Jun 16, 2010 (gmt 0)

Hi,
Google is indexing my site fine but returns one of the main keywords as 'Disallow' which appears a lot but only in my robots.txt file.

Part of my robots.txt file reads as below:

User-agent: example Disallow: /a/ Disallow: /b/ Disallow: /c/

Can the above be changed to:

User-agent: example Disallow: /a/ /b/ /c/

Or is there another way to approach my Google keyword issue?
Many thanks in advance.