patch 8.0.0453: adding fold marker creates new comment
Problem: Adding fold marker creates new comment.
Solution: Use an existing comment if possible. (LemonBoy, closes #1549)
diff --git a/src/ops.c b/src/ops.c
index 053aeca..d3e97f0 100644
--- a/src/ops.c
+++ b/src/ops.c
@@ -113,9 +113,6 @@
static void may_set_selection(void);
#endif
static void dis_msg(char_u *p, int skip_esc);
-#if defined(FEAT_COMMENTS) || defined(PROTO)
-static char_u *skip_comment(char_u *line, int process, int include_space, int *is_comment);
-#endif
static void block_prep(oparg_T *oap, struct block_def *, linenr_T, int);
static int do_addsub(int op_type, pos_T *pos, int length, linenr_T Prenum1);
#if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL)
@@ -4301,7 +4298,7 @@
* is_comment - will indicate whether the current line ends with an unclosed
* comment.
*/
- static char_u *
+ char_u *
skip_comment(
char_u *line,
int process,