patch 8.2.2199: first write after setting 'eol' does not have NL added

Problem:    First write after setting 'eol' does not have NL added. (Tomáš
            Janoušek)
Solution:   Only use b_no_eol_lnum when doing a binary write. (closes #7535)
diff --git a/src/bufwrite.c b/src/bufwrite.c
index c6d882c..d7c74de 100644
--- a/src/bufwrite.c
+++ b/src/bufwrite.c
@@ -2031,7 +2031,7 @@
 	    if (end == 0
 		    || (lnum == end
 			&& (write_bin || !buf->b_p_fixeol)
-			&& (lnum == buf->b_no_eol_lnum
+			&& ((write_bin && lnum == buf->b_no_eol_lnum)
 			    || (lnum == buf->b_ml.ml_line_count
 							   && !buf->b_p_eol))))
 	    {