Zabbix

.......... [DEV-1192] improved proc.cpu.util performance and fixed bugs

* commit 'f07b4fe8cffd035ce5738efa907af8a6e97ad4e2':
  .......... [DEV-1192] improved performance when reading directory
  .......... [DEV-1192] improved performance when reading directory
  .......... [DEV-1192] updated error logging
  .......... [DEV-1192] improved performance when reading processes
  .......... [DEV-1192] added more logging to cpuutil collector
  .......... [DEV-1192] return command line as argument event if not null terminated
  .......... [DEV-1192] fixed command line parsing and improved performance; improved performance of directory reading by not sorting directories by name
  .......... [DEV-1192] replaced go file reading functions with syscals
  .......... [DEV-1192] added benchmark when using syscalls
  .......... [DEV-1192] replaced ioutil.ReadFile with simpler functions for performance reasons
  .......... [DEV-1192] added proc.cpu.util result rounding to 1 decimal place
  .......... [DEV-1192] fixed long name matching, added index checks