Cleanup: close open file before returning

This prevents a resource leak.

Found by Coverity. Fixes CID 350080

The commit also includes some tiny whitespace/empty line fixes.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

core/uemis-downloader.c

@@ -605,6 +605,7 @@ static bool uemis_get_answer(const char *path, char *request, int n_param_in,
 		}
 		if (read(ans_file, tmp, 100) < 0) {
 			free(ans_path);
+			close(ans_file);
 			return false;
 		}
 		close(ans_file);