Fix spelling errors in comments and documentation (#7492)

plugins/inputs/snmp_trap/snmp_trap.go

@@ -254,7 +254,7 @@ func (s *SnmpTrap) lookup(oid string) (e mibEntry, err error) {
 	defer s.cacheLock.Unlock()
 	var ok bool
 	if e, ok = s.cache[oid]; !ok {
-		// cache miss.  exec snmptranlate
+		// cache miss.  exec snmptranslate
 		e, err = s.snmptranslate(oid)
 		if err == nil {
 			s.cache[oid] = e

plugins/inputs/snmp_trap/snmp_trap_test.go

@@ -84,7 +84,7 @@ func TestReceiveTrap(t *testing.T) {
 		version gosnmp.SnmpVersion
 		trap    gosnmp.SnmpTrap // include pdus
 
-		// recieve
+		// receive
 		entries []entry
 		metrics []telegraf.Metric
 	}{