10130 smatch fixes for usr/src/cmd/fm

@@ -18,11 +18,11 @@
  *
  * CDDL HEADER END
  */
 /*
  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2017, Joyent, Inc. All rights reserved.
+ * Copyright (c) 2018, Joyent, Inc.
  */
 
 #include <fmdump.h>
 #include <stdio.h>
 #include <strings.h>

@@ -181,11 +181,11 @@
         if (rp->rec_nrefs != 0)
                 fmdump_printf(fp, "\n  %s\n", efp->do_hdr);
 
         for (i = 0; i < rp->rec_nrefs; i++) {
                 fmdump_printf(fp, "  ");
-                efp->do_func(lp, &rp->rec_xrefs[i], fp);
+                (void) efp->do_func(lp, &rp->rec_xrefs[i], fp);
         }
 
         fmdump_printf(fp, "\n");
         if (pctl)
                 nvlist_prt(rp->rec_nvl, pctl);