[BUG_FIXED] Fix "Open in/Move to new instance" issue (closes #709, fixes

the new window always started at top-left corner of screen, and did not remember maximized state.
Now it will use the last saved window position and state.

PowerEditor/src/Notepad_plus.cpp

@@ -3272,15 +3272,21 @@ void Notepad_plus::docOpenInNewInstance(FileTransferMode mode, int x, int y)
 	generic_string command = TEXT("\"");
 	command += nppName;
 	command += TEXT("\"");
+	command += TEXT(" \"$(FULL_CURRENT_PATH)\" -multiInst -nosession");
 
-	command += TEXT(" \"$(FULL_CURRENT_PATH)\" -multiInst -nosession -x");
-	TCHAR pX[10], pY[10];
-	generic_itoa(x, pX, 10);
-	generic_itoa(y, pY, 10);
+	if (x) {
+		TCHAR pX[10];
+		generic_itoa(x, pX, 10);
+		command += TEXT(" -x");
+		command += pX;
+	}
+	if (y) {
+		TCHAR pY[10];
+		generic_itoa(y, pY, 10);
+		command += TEXT(" -y");
+		command += pY;
+	}
 
-	command += pX;
-	command += TEXT(" -y");
-	command += pY;
 	command += TEXT(" -l");
 	command += ScintillaEditView::langNames[buf->getLangType()].lexerName;
 	command += TEXT(" -n");