Change config file indentation to 2 spaces

plugins/system/cpu.go

@@ -26,12 +26,12 @@ func (_ *CPUStats) Description() string {
 }
 
 var sampleConfig = `
-	# Whether to report per-cpu stats or not
-	percpu = true
-	# Whether to report total system cpu stats or not
-	totalcpu = true
-	# Comment this line if you want the raw CPU time metrics
-	drop = ["cpu_time"]
+  # Whether to report per-cpu stats or not
+  percpu = true
+  # Whether to report total system cpu stats or not
+  totalcpu = true
+  # Comment this line if you want the raw CPU time metrics
+  drop = ["cpu_time"]
 `
 
 func (_ *CPUStats) SampleConfig() string {

plugins/system/disk.go

@@ -17,10 +17,10 @@ func (_ *DiskStats) Description() string {
 }
 
 var diskSampleConfig = `
-	# By default, telegraf gather stats for all mountpoints.
-	# Setting mountpoints will restrict the stats to the specified ones.
-	# mountpoints.
-	# Mountpoints=["/"]
+  # By default, telegraf gather stats for all mountpoints.
+  # Setting mountpoints will restrict the stats to the specified ones.
+  # mountpoints.
+  # Mountpoints=["/"]
 `
 
 func (_ *DiskStats) SampleConfig() string {

plugins/system/net.go

@@ -19,11 +19,11 @@ func (_ *NetIOStats) Description() string {
 }
 
 var netSampleConfig = `
-	# By default, telegraf gathers stats from any up interface (excluding loopback)
-	# Setting interfaces will tell it to gather these explicit interfaces,
-	# regardless of status.
-	#
-	# interfaces = ["eth0", ... ]
+  # By default, telegraf gathers stats from any up interface (excluding loopback)
+  # Setting interfaces will tell it to gather these explicit interfaces,
+  # regardless of status.
+  #
+  # interfaces = ["eth0", ... ]
 `
 
 func (_ *NetIOStats) SampleConfig() string {