patch 8.1.2053: SafeStateAgain not triggered if callback uses feedkeys()
Problem: SafeStateAgain not triggered if callback uses feedkeys().
Solution: Check for safe state in the input loop. Make log messages easier
to find. Add 'S' flag to state().
diff --git a/src/proto/main.pro b/src/proto/main.pro
index 873255d..c663cd2 100644
--- a/src/proto/main.pro
+++ b/src/proto/main.pro
@@ -4,7 +4,8 @@
int is_not_a_term(void);
int op_pending(void);
void may_trigger_safestate(int safe);
-void state_no_longer_safe(void);
+void state_no_longer_safe(char *reason);
+int get_was_safe_state(void);
void may_trigger_safestateagain(void);
void main_loop(int cmdwin, int noexmode);
void getout_preserve_modified(int exitval);