Fix changes with node_exporter on bsd.

Author: mattdurham

collector/exec_bsd.go

@@ -62,7 +62,6 @@ func NewExecCollector(config *NodeCollectorConfig, logger log.Logger) (Collector
 				description: "System calls since system boot.  Resets at architecture unsigned integer.",
 				mib:         "vm.stats.sys.v_syscall",
 			},
-			labels: nil,
 			{
 				name:        "exec_device_interrupts_total",
 				description: "Device interrupts since system boot.  Resets at architecture unsigned integer.",

collector/filesystem_freebsd.go

@@ -65,7 +65,7 @@ func (c *filesystemCollector) GetStats(_ PathConfig) ([]filesystemStats, error)
 		stats = append(stats, filesystemStats{
 			labels: filesystemLabels{
 				device:     device,
-				mountPoint: rootfsStripPrefix(mountpoint),
+				mountPoint: c.config.Path.rootfsStripPrefix(mountpoint),
 				fsType:     fstype,
 			},
 			size:      float64(fs.Blocks) * float64(fs.Bsize),

collector/netdev_bsd.go

@@ -34,7 +34,7 @@ import (
 */
 import "C"
 
-func getNetDevStats(filter *deviceFilter, logger log.Logger) (netDevStats, error) {
+func getNetDevStats(_ *NodeCollectorConfig, _ *bool, filter *deviceFilter, logger log.Logger) (netDevStats, error) {
 	netDev := netDevStats{}
 
 	var ifap, ifa *C.struct_ifaddrs

collector/zfs_freebsd.go

@@ -337,11 +337,11 @@ func (c *zfsCollector) parseFreeBSDPoolObjsetStats() error {
 
 	for dataset, _ := range zfsDatasets {
 		if strings.HasSuffix(dataset, ".dataset_name") {
-			zfsDatasetNames = append(zfsDatasetNames, strings.SplitAfter(dataset, ".")[3])
+			zfsDatasetsNames = append(zfsDatasetsNames, strings.SplitAfter(dataset, ".")[3])
 		}
 	}
 
-	for zpoolDataset := range zfsDatasetsNames {
+	for _, zpoolDataset := range zfsDatasetsNames {
 		zfsDatasetLabels := map[string]string{
 			"dataset": zpoolDataset,
 			"zpool":   strings.SplitAfter(zpoolDataset, "/")[0],