patch 8.1.0365: function profile doesn't specify where it was defined

Problem:    Function profile doesn't specify where it was defined.
Solution:   Show the script name and line number.
diff --git a/src/userfunc.c b/src/userfunc.c
index 78a2ecc..f6e16fe 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -2587,6 +2587,7 @@
     int		i;
     ufunc_T	**sorttab;
     int		st_len = 0;
+    char_u	*p;
 
     todo = (int)func_hashtab.ht_used;
     if (todo == 0)
@@ -2609,6 +2610,14 @@
 		    fprintf(fd, "FUNCTION  <SNR>%s()\n", fp->uf_name + 3);
 		else
 		    fprintf(fd, "FUNCTION  %s()\n", fp->uf_name);
+		p = home_replace_save(NULL,
+				     get_scriptname(fp->uf_script_ctx.sc_sid));
+		if (p != NULL)
+		{
+		    fprintf(fd, "    Defined: %s line %ld\n",
+					   p, (long)fp->uf_script_ctx.sc_lnum);
+		    vim_free(p);
+		}
 		if (fp->uf_tm_count == 1)
 		    fprintf(fd, "Called 1 time\n");
 		else