updated for version 7.4.669

Problem:    When netbeans is active the sign column always shows up.
Solution:   Only show the sign column once a sign has been added. (Xavier de
            Gaye)

src/buffer.c

@@ -5473,6 +5473,10 @@ insert_sign(buf, prev, next, id, lnum, typenr)
 
 	    /* first sign in signlist */
 	    buf->b_signlist = newsign;
+#ifdef FEAT_NETBEANS_INTG
+	    if (netbeans_active())
+		buf->b_has_sign_column = TRUE;
+#endif
 	}
 	else
 	    prev->next = newsign;