patch 9.1.0806: tests: no error check when setting global 'briopt'

Problem:  tests: no error check when setting global 'briopt'
Solution: also parse and check global 'briopt' value (Milly)

closes: #15911

Signed-off-by: Milly <milly.ca@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/option.c b/src/option.c
index a55288a..179c61e 100644
--- a/src/option.c
+++ b/src/option.c
@@ -6751,7 +6751,7 @@
     else
 	wp->w_skipcol = 0;
 #ifdef FEAT_LINEBREAK
-    briopt_check(wp);
+    briopt_check(NULL, wp);
 #endif
 #ifdef FEAT_SYN_HL
     fill_culopt_flags(NULL, wp);