Just slightly tweaked the default widths for 'I' formats in ASCII tables.  Leaves room for sign, and some padding for readability.
Just slightly tweaked the default widths for 'I' formats in ASCII tables.  Leaves room for sign, and some padding for readability.

git-svn-id: 5305e2c1a78737cf7dd5f8f44e9bbbd00348fde7@823 ed100bfc-0583-0410-97f2-c26b58777a21

embray/PyFITS,spacetelescope/PyFITS,embray/PyFITS,embray/PyFITS,spacetelescope/PyFITS,embray/PyFITS