* Exporting Ipmi.Path to be set by config.
Currently "path" is not exported, giving this error when users try to
override the variable via telegraf.conf as per the sample config:
`field corresponding to `path' is not defined in `*ipmi_sensor.Ipmi'`
Exporting the variable solves the problem.
* Updating changelog.
First is to write an internal CombinedOutput and Run function with a
timeout.
Second, the following instances of command runners need to have timeouts:
plugins/inputs/ping/ping.go
125: out, err := c.CombinedOutput()
plugins/inputs/exec/exec.go
91: if err := cmd.Run(); err != nil {
plugins/inputs/ipmi_sensor/command.go
31: err := cmd.Run()
plugins/inputs/sysstat/sysstat.go
194: out, err := cmd.CombinedOutput()
plugins/inputs/leofs/leofs.go
185: defer cmd.Wait()
plugins/inputs/sysstat/sysstat.go
282: if err := cmd.Wait(); err != nil {
closes#1067
Victor Yunevich
Robpol86
Matteo Cerutti
Cameron Sparr
Lukasz Jagiello
Armin Wolfermann