Move to typical go project layout, fix golangci-lint warnings, update deps

vendor/github.com/shirou/gopsutil/v3/process/process_darwin_nocgo.go

@@ -24,14 +24,21 @@ func (p *Process) ExeWithContext(ctx context.Context) (string, error) {
 	}
 	txtFound := 0
 	lines := strings.Split(string(out), "\n")
+	fallback := ""
 	for i := 1; i < len(lines); i++ {
 		if lines[i] == "ftxt" {
 			txtFound++
+			if txtFound == 1 {
+				fallback = lines[i-1][1:]
+			}
 			if txtFound == 2 {
 				return lines[i-1][1:], nil
 			}
 		}
 	}
+	if fallback != "" {
+		return fallback, nil
+	}
 	return "", fmt.Errorf("missing txt data returned by lsof")
 }
 

vendor/github.com/shirou/gopsutil/v3/process/process_openbsd.go

@@ -68,7 +68,12 @@ func (p *Process) NameWithContext(ctx context.Context) (string, error) {
 }
 
 func (p *Process) CwdWithContext(ctx context.Context) (string, error) {
-	return "", common.ErrNotImplementedError
+	mib := []int32{CTLKern, KernProcCwd, p.Pid}
+	buf, _, err := common.CallSyscall(mib)
+	if err != nil {
+		return "", err
+	}
+	return common.ByteToString(buf), nil
 }
 
 func (p *Process) ExeWithContext(ctx context.Context) (string, error) {

vendor/github.com/shirou/gopsutil/v3/process/process_openbsd_386.go

@@ -14,6 +14,7 @@ const (
 	KernProcProc     = 8
 	KernProcPathname = 12
 	KernProcArgs     = 55
+	KernProcCwd      = 78
 	KernProcArgv     = 1
 	KernProcEnv      = 3
 )

vendor/github.com/shirou/gopsutil/v3/process/process_openbsd_amd64.go

@@ -11,6 +11,7 @@ const (
 	KernProcProc     = 8
 	KernProcPathname = 12
 	KernProcArgs     = 55
+	KernProcCwd      = 78
 	KernProcArgv     = 1
 	KernProcEnv      = 3
 )

vendor/github.com/shirou/gopsutil/v3/process/process_openbsd_arm.go

@@ -14,6 +14,7 @@ const (
 	KernProcProc     = 8
 	KernProcPathname = 12
 	KernProcArgs     = 55
+	KernProcCwd      = 78
 	KernProcArgv     = 1
 	KernProcEnv      = 3
 )

vendor/github.com/shirou/gopsutil/v3/process/process_openbsd_arm64.go

@@ -14,6 +14,7 @@ const (
 	KernProcProc     = 8
 	KernProcPathname = 12
 	KernProcArgs     = 55
+	KernProcCwd      = 78
 	KernProcArgv     = 1
 	KernProcEnv      = 3
 )

vendor/github.com/shirou/gopsutil/v3/process/process_openbsd_riscv64.go

@@ -14,6 +14,7 @@ const (
 	KernProcProc     = 8
 	KernProcPathname = 12
 	KernProcArgs     = 55
+	KernProcCwd      = 78
 	KernProcArgv     = 1
 	KernProcEnv      = 3
 )