Ignore unsafe pointer conversion warning

This is a temporary fix for elastic#138
to ignore the warning.

.appveyor.yml

@@ -57,7 +57,7 @@ build_script:
 test_script:
   # Unit tests
   - ps: Add-AppveyorTest "Unit Tests" -Outcome Running
-  - go test -v ./...
+  - go test -gcflags=-d=checkptr -v ./...
   - ps: Update-AppveyorTest "Unit Tests" -Outcome Passed
   - ps: Add-AppveyorTest "Running Examples" -Outcome Running
   - .\examples\df\df.exe

.travis.yml

@@ -28,5 +28,5 @@ script:
   - gofmt -l . | read && echo "Code differs from gofmt's style. Run 'gofmt -w .'" 1>&2 && exit 1 || true
   - go vet
   - go build
-  - go test -v ./...
+  - go test -gcflags=-d=checkptr -v ./...
   - for i in $(ls examples); do go build -o examples/$i/$i ./examples/$i; ./examples/$i/$i; done

sigar_util.go

@@ -6,6 +6,8 @@ import (
 	"unsafe"
 )
 
+// TODO (2020-07-14): Fix the unsafe pointer conversion. https://github.com/elastic/gosigar/issues/138
+//go:nocheckptr
 func bytePtrToString(ptr *int8) string {
 	bytes := (*[10000]byte)(unsafe.Pointer(ptr))