sort lists of trashed messages after journal replay

the messages are trashed in mailbox (and thus UID) order, and in
practice we expect the operations to complete in order. however, if
older messages need to be trashed after a journal replay, and we get
interrupted again, the next replay would produce an unsorted array,
and thus break the binary search.

amends 2bba9b9.

src/sync.c

@@ -1127,6 +1127,8 @@ load_state( sync_vars_t *svars )
 			}
 		}
 		fclose( jfp );
+		sort_uint_array( svars->trashed_msgs[F].array );
+		sort_uint_array( svars->trashed_msgs[N].array );
 	} else {
 		if (errno != ENOENT) {
 			sys_error( "Error: cannot read journal %s", svars->jname );