logd: build breakage aosp-brillo-master @ 2508494

Change-Id: I38e506bc997c6e9759a064b517f9372a27d0e510
diff --git a/logd/LogKlog.cpp b/logd/LogKlog.cpp
index ba0b6e5..9690489 100644
--- a/logd/LogKlog.cpp
+++ b/logd/LogKlog.cpp
@@ -286,7 +286,7 @@
     memset(&tm, 0, sizeof(tm));
     tm.tm_isdst = -1;
     localtime_r(&now, &tm);
-    if ((tm.tm_gmtoff < 0) && ((-tm.tm_gmtoff) > real.tv_sec)) {
+    if ((tm.tm_gmtoff < 0) && ((-tm.tm_gmtoff) > (long)real.tv_sec)) {
         real = log_time::EPOCH;
     } else {
         real.tv_sec += tm.tm_gmtoff;