docs(metrics): fix trailing whitespace in metrics docs generator to pass the pre-commit action

Signed-off-by: JulianLegler <julian.legler@tu-berlin.de>

Author: JulianLegler

docs/user/metrics.md

@@ -21,7 +21,7 @@ CPU energy and power metrics carry a `zone` label. A zone is a hardware power do
 - `uncore`: the uncore parts of the package, such as an integrated GPU
 - `dram`: the memory attached to the memory controller
 
-Which zones are exported depends entirely on what the hardware and the kernel expose on that machine. It is common that CPUs support only a subset of these zones. A zone that is not available will not appear in the metrics. 
+Which zones are exported depends entirely on what the hardware and the kernel expose on that machine. It is common that CPUs support only a subset of these zones. A zone that is not available will not appear in the metrics.
 
 Some zones overlap and therefore zones should not be summed. `package` already contains `core`, `uncore`, and part of what `psys` covers. It is advised to filter on a single zone in queries, for example `kepler_node_cpu_watts{zone="package"}`.
 

hack/gen-metric-docs/main.go

@@ -212,10 +212,10 @@ func generateMarkdown(metrics []MetricInfo) string {
 	md.WriteString("- `uncore`: the uncore parts of the package, such as an integrated GPU\n")
 	md.WriteString("- `dram`: the memory attached to the memory controller\n\n")
 	md.WriteString("Which zones are exported depends entirely on what the hardware and the kernel expose on that machine. ")
-	md.WriteString("It is common that CPUs support only a subset of these zones. A zone that is not available will not appear in the metrics. \n\n")
+	md.WriteString("It is common that CPUs support only a subset of these zones. A zone that is not available will not appear in the metrics.\n\n")
 	md.WriteString("Some zones overlap and therefore zones should not be summed. `package` already contains `core`, `uncore`, and part of what `psys` covers. ")
 	md.WriteString("It is advised to filter on a single zone in queries, for example `kepler_node_cpu_watts{zone=\"package\"}`.\n\n")
-	
+
 	md.WriteString("## Metrics Reference\n\n")
 
 	nodeMetrics := []MetricInfo{}