patch 8.1.1371: cannot recover from a swap file
Problem: Cannot recover from a swap file.
Solution: Do not expand environment variables in the swap file name.
Do not check the extension when we already know a file is a swap
file. (Ken Takata, closes 4415, closes #4369)
diff --git a/src/proto/memline.pro b/src/proto/memline.pro
index 57cc767..3199ba9 100644
--- a/src/proto/memline.pro
+++ b/src/proto/memline.pro
@@ -9,7 +9,7 @@
void ml_close_all(int del_file);
void ml_close_notmod(void);
void ml_timestamp(buf_T *buf);
-void ml_recover(void);
+void ml_recover(int checkext);
int recover_names(char_u *fname, int list, int nr, char_u **fname_out);
char_u *make_percent_swname(char_u *dir, char_u *name);
void get_b0_dict(char_u *fname, dict_T *d);