patch 8.0.0230: bracketed paste does not support line breaks

Problem:    When using bracketed paste line breaks are not respected.
Solution:   Turn CR characters into a line break if the text is being
            inserted. (closes #1404)
diff --git a/src/edit.c b/src/edit.c
index 61d9217..ce6abaf 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -9498,7 +9498,11 @@
 		case PASTE_INSERT:
 		    if (stop_arrow() == OK)
 		    {
-			ins_char_bytes(buf, idx);
+			c = buf[0];
+			if (idx == 1 && (c == CAR || c == K_KENTER || c == NL))
+			    ins_eol(c);
+			else
+			    ins_char_bytes(buf, idx);
 			AppendToRedobuffLit(buf, idx);
 		    }
 		    break;