patch 8.1.0491: if a terminal dump has CR it is considered corrupt

Problem:    If a terminal dump has CR it is considered corrupt.
Solution:   Ignore CR characters. (Nobuhiro Takasaki, closes #3558)

Author: brammool

src/terminal.c

@@ -4094,7 +4094,12 @@ read_dump_file(FILE *fd, VTermPos *cursor_pos)
     {
 	if (c == EOF)
 	    break;
-	if (c == '\n')
+	if (c == '\r')
+	{
+	    // DOS line endings?  Ignore.
+	    c = fgetc(fd);
+	}
+	else if (c == '\n')
 	{
 	    /* End of a line: append it to the buffer. */
 	    if (ga_text.ga_data == NULL)

src/version.c

@@ -792,6 +792,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    491,
 /**/
     490,
 /**/