Apply max_log_file constraint when timestamp_in_log_file=false

[andrembcosta]

Currently, when the flag timestamp_in_log_file=false and max_log_file is set, instead of quitting logging or overwriting to preserve the size limit, glog just appends to the log file and eventually breaks the size limit.

Am I missing another flag to get the intended behavior of having a single log file of limited size? Or is this an actual limitation?

This appears to be similar to #809