username fix (#42)

Author: ishleenk17

remappers/hostmetrics/process.go

@@ -279,6 +279,8 @@ func addProcessResources(resource pcommon.Resource, startTime time.Time) func(pm
 owner, _ := resource.Attributes().Get("process.owner")
 if owner.Str() != "" {
 dp.Attributes().PutStr("user.name", owner.Str())
+} else {
+dp.Attributes().PutStr("user.name", "undefined")
 }
 exec, _ := resource.Attributes().Get("process.executable.path")
 if exec.Str() != "" {
@@ -291,6 +293,8 @@ func addProcessResources(resource pcommon.Resource, startTime time.Time) func(pm
 cmdline, _ := resource.Attributes().Get("process.command_line")
 if cmdline.Str() != "" {
 dp.Attributes().PutStr("system.process.cmdline", cmdline.Str())
+} else {
+dp.Attributes().PutStr("system.process.cmdline", "undefined")
 }
 dp.Attributes().PutStr("system.process.cpu.start_time", startTimeStr)
 // Adding dummy value to process.state as "undefined", since this field is not