Modify some typo, thanks to the partly-completed testcase to help to find this little problem.
Modify some typo, thanks to the partly-completed testcase to help to find this little problem.

svn path=/trunk/dom/; revision=7392

prepare/netsurf_libdom,Achal-Aggarwal/libdom,Achal-Aggarwal/libdom,dunkelstern/libdom,dunkelstern/libdom,prepare/netsurf_libdom,dunkelstern/libdom,dunkelstern/libdom,dunkelstern/libdom,prepare/netsurf_libdom,Achal-Aggarwal/libdom,prepare/netsurf_libdom,Achal-Aggarwal/libdom,Achal-Aggarwal/libdom,Achal-Aggarwal/libdom,prepare/netsurf_libdom,dunkelstern/libdom,prepare/netsurf_libdom