fix comment in change-merged hook

Change-Id: I10a1d016b3e02bd59bdfbfc55ba31dbe9500a861
diff --git a/change-merged.inactive b/change-merged.inactive
index 32669dd..d703b6a 100755
--- a/change-merged.inactive
+++ b/change-merged.inactive
@@ -205,5 +205,5 @@
 EOF
 		) &> ${LOG_FILE}; RET=$?
 
-Keep the log if the hook has failed only
+# Keep the log if the hook has failed only
 [ "$RET" -ne 0 ] || rm -f ${LOG_FILE}