make cmp do what I meant

Signed-off-by: Stephen Gran <steve@lobefin.net>

diff --git a/ud-replicate b/ud-replicate
index d8b5f4e..86f4c1f 100755 (executable)
--- a/ud-replicate
+++ b/ud-replicate
@@ -164,7 +164,7 @@ fi
 
 rndc_reload=0
 if [ -e /var/lib/misc/thishost/dns-sshfp ]; then
-  if cmp /var/lib/misc/thishost/dns-sshfp $tempfile; then
+  if ! cmp -s /var/lib/misc/thishost/dns-sshfp $tempfile; then
     rndc_reload=1
   fi
 fi