patch 8.1.1588: in :let-heredoc line continuation is recognized
Problem: In :let-heredoc line continuation is recognized.
Solution: Do not consume line continuation. (Ozaki Kiichi, closes #4580)
diff --git a/src/proto/ex_cmds2.pro b/src/proto/ex_cmds2.pro
index 33dee0b..0d249cb 100644
--- a/src/proto/ex_cmds2.pro
+++ b/src/proto/ex_cmds2.pro
@@ -81,7 +81,7 @@
void scriptnames_slash_adjust(void);
char_u *get_scriptname(scid_T id);
void free_scriptnames(void);
-char_u *getsourceline(int c, void *cookie, int indent);
+char_u *getsourceline(int c, void *cookie, int indent, int do_concat);
void script_line_start(void);
void script_line_exec(void);
void script_line_end(void);
@@ -89,7 +89,7 @@
void ex_scriptversion(exarg_T *eap);
void ex_finish(exarg_T *eap);
void do_finish(exarg_T *eap, int reanimate);
-int source_finished(char_u *(*fgetline)(int, void *, int), void *cookie);
+int source_finished(char_u *(*fgetline)(int, void *, int, int), void *cookie);
void ex_checktime(exarg_T *eap);
char_u *get_mess_lang(void);
void set_lang_var(void);