Fix multiple consecutive blank lines

Author: seaxwi

content/Software Support/Upload/Error-exit-status-1.md

@@ -10,7 +10,6 @@ Your error output may end with one of these lines:
 * `Compilation error: exit status 1`. See [If your sketch doesn't compile](https://support.arduino.cc/hc/en-us/articles/4402764401554-Compilation-errors-when-uploading).
 * `Failed uploading: uploading error: exit status 1`. See [Errors when uploading a sketch](https://support.arduino.cc/hc/en-us/articles/4403365313810-Errors-when-uploading-a-sketch).
 
-
 If your error only reads `exit status 1`, or if you have a different error, click the ![Verify button](img/symbol_verify2.png) **Verify** button:
 
 * If you still get an error, it occurs during **compilation**. See [If your sketch doesn't compile](https://support.arduino.cc/hc/en-us/articles/4402764401554-Compilation-errors-when-uploading).