[kudu-CR] monotime: use a signed integer for the value

Todd Lipcon has submitted this change and it was merged. Change subject: monotime: use a signed integer for the value .. monotime: use a signed integer for the value MonoTime previously used a uint64_t to store its value. This

[kudu-CR] monotime: use a signed integer for the value

Todd Lipcon has posted comments on this change. Change subject: monotime: use a signed integer for the value .. Patch Set 1: yea, 2^63 microseconds is 292,277.266 years, so I dont think we're in danger of a system's uptime