eq(n) has issues when spaces present

[hpoom]

Code like: $( 'img:eq(1)' ).hide();

works fine, but this code: $( 'img:eq( 1 )' ).hide();

does not work. Spaces should be acceptable inside the eq to allow both eq(n) and eq( n )

In our coding guidelines it states spaces must be present between all brackets to make the code clearer, but now I have break out coding guidelines to make my eq work.

Please fix

[dmethvin]

See also #5144

[Rick Waldron]

Documented selector syntax does not purport the allowance of spaces in selector strings. The space is generally regarded as descendant selector syntax