SVN r313701 breaks build

An opening brace was missed in the change; fix as below:


Index: sys/dev/md/md.c
===================================================================
--- sys/dev/md/md.c     (revision 313701)
+++ sys/dev/md/md.c     (working copy)
_at__at_ -1860,7 +1860,7 _at__at_
                        sbuf_printf(sb, "%s<type>%s</type>\n", indent,
                            type);
                        if ((mp->type == MD_VNODE && mp->vnode != NULL) ||
-                           (mp->type == MD_PRELOAD && mp->file[0] != '\0'))
+                           (mp->type == MD_PRELOAD && mp->file[0] !=
'\0')) {
                                sbuf_printf(sb, "%s<file>", indent);
                                g_conf_printf_escaped(sb, "%s", mp->file);
                                sbuf_printf(sb, "</file>\n");