Add changes for [GL #1989]

CHANGES

@@ -1,3 +1,7 @@
+5464.	[bug]		Specifying saving more than 128 files when rolling
+			dnstap / log files would cause buffer overflow.
+			[GL #1989]
+
 5463.	[placeholder]
 
 5462.	[bug]		Move LMDB locking from LMDB itself to named. [GL #1976]

lib/isc/log.c

@@ -1180,7 +1180,8 @@ remove_old_tsversions(isc_logfile_t *file, int versions) {
 						memmove(&to_keep[i + 1],
 							&to_keep[i],
 							sizeof(to_keep[0]) *
-							(versions - i - 1));
+								(versions - i -
+								 1));
 						to_keep[i] = version;
 					}
 				}