Fix some error messages.

collector/cpu_freebsd.go

@@ -53,7 +53,7 @@ func (c *statCollector) Update(ch chan<- prometheus.Metric) (err error) {
 	var errbuf *C.char
 	kd := C.kvm_open(nil, nil, nil, C.O_RDONLY, errbuf)
 	if errbuf != nil {
-		return errors.New("failed to call kvm_open().")
+		return errors.New("failed to call kvm_open()")
 	}
 	defer C.kvm_close(kd)
 

collector/devstat_freebsd.go

@@ -191,10 +191,10 @@ func NewDevstatCollector() (Collector, error) {
 func (c *devstatCollector) Update(ch chan<- prometheus.Metric) (err error) {
 	count := C._get_ndevs()
 	if count == -1 {
-		return errors.New("devstat_getdevs() failed!")
+		return errors.New("devstat_getdevs() failed")
 	}
 	if count == -2 {
-		return errors.New("calloc() failed!")
+		return errors.New("calloc() failed")
 	}
 
 	for i := C.int(0); i < count; i++ {

collector/filesystem_freebsd.go

@@ -98,7 +98,7 @@ func (c *filesystemCollector) Update(ch chan<- prometheus.Metric) (err error) {
 	var mntbuf *C.struct_statfs
 	count := C.getmntinfo(&mntbuf, C.MNT_NOWAIT)
 	if count == 0 {
-		return errors.New("getmntinfo() failed!")
+		return errors.New("getmntinfo() failed")
 	}
 
 	mnt := (*[1 << 30]C.struct_statfs)(unsafe.Pointer(mntbuf))

collector/loadavg.go

@@ -51,7 +51,7 @@ func getLoad1() (float64, error) {
 	if samples > 0 {
 		return float64(loadavg[0]), nil
 	} else {
-		return 0, errors.New("Failed to get load average!")
+		return 0, errors.New("failed to get load average")
 	}
 
 }

collector/meminfo_freebsd.go

@@ -54,10 +54,10 @@ func (c *meminfoCollector) Update(ch chan<- prometheus.Metric) (err error) {
 
 	size := C._sysctl(C.CString("vm.stats.vm.v_page_size"))
 	if size == -1 {
-		return errors.New("sysctl(vm.stats.vm.v_page_size) failed!")
+		return errors.New("sysctl(vm.stats.vm.v_page_size) failed")
 	}
 	if size == -2 {
-		return errors.New("sysctl(vm.stats.vm.v_page_size) failed, wrong buffer size!")
+		return errors.New("sysctl(vm.stats.vm.v_page_size) failed, wrong buffer size")
 	}
 
 	pages["active"] = C._sysctl(C.CString("vm.stats.vm.v_active_count"))
@@ -74,7 +74,7 @@ func (c *meminfoCollector) Update(ch chan<- prometheus.Metric) (err error) {
 			return errors.New("sysctl() failed for " + key)
 		}
 		if pages[key] == -2 {
-			return errors.New("sysctl() failed for " + key + ", wrong buffer size!")
+			return errors.New("sysctl() failed for " + key + ", wrong buffer size")
 		}
 	}
 
@@ -88,7 +88,7 @@ func (c *meminfoCollector) Update(ch chan<- prometheus.Metric) (err error) {
 				Help:      k + " from sysctl()",
 			})
 		}
-		// Convert metrics to kB ( same as Linux meminfo).
+		// Convert metrics to kB (same as Linux meminfo).
 		c.metrics[k].Set(float64(v) * float64(size))
 		c.metrics[k].Collect(ch)
 	}

collector/netdev_freebsd.go

@@ -81,7 +81,7 @@ func getNetDevStats() (map[string]map[string]map[string]string, error) {
 
 	var ifap, ifa *C.struct_ifaddrs
 	if C.getifaddrs(&ifap) == -1 {
-		return nil, errors.New("getifaddrs() failed!")
+		return nil, errors.New("getifaddrs() failed")
 	}
 	defer C.freeifaddrs(ifap)