t/t5505-remote.sh: escape * to prevent interpretation by shell as glob

t/t5505-remote.sh: escape * to prevent interpretation by shell as glob

This test is supposed to check that git-remote correctly refuses to delete
all URLS for the specified remote which match the '.*' regular expression.
Since the '*' was not protected, it was interpreted by the shell as a file
glob and expanded before being passed to git-remote.  The call to
git-remote still exited non-zero in this case, and the overall test still
passed, but it exited non-zero because git-remote was passed the incorrect
number of arguments, not for the reason it was supposed to fail.

Correct the test by escaping the '*'.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>