Consistency

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4796 c046a42c-6fe2-441c-8c8c-71466251a162

qemu-doc.texi

@@ -184,7 +184,7 @@ SMP is supported with up to 255 CPUs.
 
 Note that adlib, ac97, gus and cs4231a are only available when QEMU
 was configured with --audio-card-list option containing the name(s) of
-required cards.
+required card(s).
 
 QEMU uses the PC BIOS from the Bochs project and the Plex86/Bochs LGPL
 VGA BIOS.