klogd: fix small buglet in previous commit

diff --git a/sysklogd/klogd.c b/sysklogd/klogd.c
index a0e0bf7..c54e80a 100644
--- a/sysklogd/klogd.c
+++ b/sysklogd/klogd.c
@@ -89,6 +89,7 @@
 
 		/* klogctl buffer parsing modelled after code in dmesg.c */
 		/* Process each newline-terminated line in the buffer */
+		start = log_buffer;
 		while (1) {
 			char *newline = strchrnul(start, '\n');