tsar 输出格式优化

使用-D参数以后列的位置有错位，另外是否能读取bash的$LINES变量来决定多少行来重复一次Time这个表头？

Reproduce the tsar command with the -D option and inspect its terminal output formatting. Check how the Time header is repeated and whether the bash $LINES value is available to the command. Done means aligned columns with -D and repetition based on the terminal line count.

Written by the indexing model from the issue text.