patch 9.2.0243: memory leak in change_indent()

Problem:  memory leak in change_indent()
Solution: Free orig_line in the error case
          (Huihui Huang)

closes: #19820

Signed-off-by: Huihui Huang <625173@qq.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

Author: huanghuihui0904

src/indent.c

@@ -1513,7 +1513,10 @@ change_indent(
 	// Save new line
 	new_line = vim_strnsave(ml_get_curline(), ml_get_curline_len());
 	if (new_line == NULL)
+	{
+	    vim_free(orig_line);
 	    return;
+	}
 
 	// We only put back the new line up to the cursor
 	new_line[curwin->w_cursor.col] = NUL;

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    243,
 /**/
     242,
 /**/