Code review comments from jeffpc

@@ -221,21 +221,21 @@
         }
 
         for (fd = flagdescs; fd->name != NULL; fd++) {
                 if (secflag_isset(flags, fd->value)) {
                         if (buf[0] != '\0')
-                                (void) strlcat(buf, ", ", buflen);
+                                (void) strlcat(buf, ",", buflen);
                         (void) strlcat(buf, fd->name, buflen);
                 }
 
                 secflag_clear(&flags, fd->value);
         }
 
         if (flags != 0) {       /* unknown flags */
-                char hexbuf[11]; /* 0x%08x */
+                char hexbuf[19]; /* 0x%16 PRIx64 */
 
-                (void) snprintf(hexbuf, sizeof (hexbuf), "0x%08x", flags);
+                (void) snprintf(hexbuf, sizeof (hexbuf), "0x%16" PRIx64, flags);
                 if (buf[0] != '\0')
-                        (void) strlcat(buf, ", ", buflen);
+                        (void) strlcat(buf, ",", buflen);
                 (void) strlcat(buf, hexbuf, buflen);
         }
 }