Fix library-list.dtd -> library-list-svr4.dtd

Fix library-list.dtd -> library-list-svr4.dtd

commit 2268b414f486239cbcc0f756f157c3e03599efac
added file "features/library-list-svr4.dtd" but the added code uses
"library-list.dtd" instead.

Curiously after changing for a test s/name/nXme/ in the DTD making the
gdbserver output non-conforming there is no warning or regression seen (tested
gdb.base/shlib-call.exp, using_xfer is still 1).  I did not check more why the
DTD conformance verification does not work.

gdb/ChangeLog
2014-09-29  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* solib-svr4.c (svr4_parse_libraries): Use "library-list-svr4.dtd".