patch 8.2.0309: window-local values have confusing name

Problem:    Window-local values have confusing name.
Solution:   Rename w_p_bri* to w_briopt_*.
diff --git a/src/drawline.c b/src/drawline.c
index b581411..9f943e0 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -1140,11 +1140,11 @@
 	    }
 
 #ifdef FEAT_LINEBREAK
-	    if (wp->w_p_brisbr && draw_state == WL_BRI - 1
+	    if (wp->w_briopt_sbr && draw_state == WL_BRI - 1
 			    && n_extra == 0 && *get_showbreak_value(wp) != NUL)
 		// draw indent after showbreak value
 		draw_state = WL_BRI;
-	    else if (wp->w_p_brisbr && draw_state == WL_SBR && n_extra == 0)
+	    else if (wp->w_briopt_sbr && draw_state == WL_SBR && n_extra == 0)
 		// After the showbreak, draw the breakindent
 		draw_state = WL_BRI - 1;
 
@@ -1176,7 +1176,7 @@
 		    c_final = NUL;
 		    n_extra = get_breakindent_win(wp,
 				       ml_get_buf(wp->w_buffer, lnum, FALSE));
-		    if (wp->w_skipcol > 0 && wp->w_p_wrap && wp->w_p_brisbr)
+		    if (wp->w_skipcol > 0 && wp->w_p_wrap && wp->w_briopt_sbr)
 			need_showbreak = FALSE;
 		    // Correct end of highlighted area for 'breakindent',
 		    // required when 'linebreak' is also set.