Stopped nolintlint and gofmt from fighting each other

Nolintlint wants the //nolint directives without a leading space
GoFmt wants them with a leading space, ...
   except if nolint has no space afterwards:

// nolint:foo // <-- malformed
//nolint :foo // <-- malformed
//nolint: foo // <-- malformed

//nolint:foo // <-- OK

See golangci/golangci-lint#3110 (comment)

backend_mock.go

@@ -26,6 +26,6 @@ func selectBackend(ctx context.Context) backend.Backend {
 		return windows.Backend{}
 	}
 
-	//nolint: forcetypeassert // The panic is expected and welcome
+	//nolint:forcetypeassert // The panic is expected and welcome
 	return v.(backend.Backend)
 }

exec.go

@@ -145,7 +145,7 @@ func (c *Cmd) Start() (err error) {
 		go func() {
 			select {
 			case <-c.ctx.Done():
-				//nolint: errcheck // Mimicking behaviour from stdlib
+				//nolint:errcheck // Mimicking behaviour from stdlib
 				c.Process.Kill()
 				// We deviate from the stdlib: "context cancelled" is more useful than "exit code 1"
 				c.ctxErr = c.ctx.Err()
@@ -178,7 +178,7 @@ func (c *Cmd) Output() (out []byte, err error) {
 	if err != nil && captureErr {
 		target := &exec.ExitError{}
 		if errors.As(err, &target) {
-			//nolint: forcetypeassert
+			//nolint:forcetypeassert
 			// copied from stdlib. We know this to be true because it is set further up in this same function
 			target.Stderr = c.Stderr.(*prefixSuffixSaver).Bytes()
 		}

exec_test.go

@@ -612,7 +612,7 @@ print("Your text was", v)
 			// - In the happy path (all checks pass) we'll have waited on the command already, so
 			//   this second wait is superfluous.
 			// - If a check fails, we don't really care about any subsequent errors like this one.
-			defer cmd.Wait() //nolint: errcheck
+			defer cmd.Wait() //nolint:errcheck
 
 			buffer := make([]byte, 1024)
 
@@ -642,7 +642,7 @@ print("Your text was", v)
 			require.NoError(t, err, "Unexpected error on command wait")
 
 			if tc.readFrom == readFromPipe {
-				err = stdin.(io.WriteCloser).Close() //nolint: forcetypeassert
+				err = stdin.(io.WriteCloser).Close() //nolint:forcetypeassert
 				require.NoError(t, err, "Failed to close stdin pipe multiple times")
 			}
 		})

registration_test.go

@@ -165,7 +165,7 @@ func TestUnregister(t *testing.T) {
 // called in order to deallocate resources. You can call cancel multiple times without
 // adverse effect.
 //
-//nolint: revive // No, I wont' put the context before the *testing.T.
+//nolint:revive // No, I wont' put the context before the *testing.T.
 func wslShutdownTimeout(t *testing.T, ctx context.Context, timeout time.Duration) (cancel func()) {
 	t.Helper()