abcdef hijklmn	pqrstuvwxyz 1060ABCDEFGHIJKLMNOP 

Test 1: set linebreak + set list + fancy listchars
▕———abcdef          
+hijklmn▕———        
+pqrstuvwxyz␣1060ABC
+DEFGHIJKLMNOPˑ¶    

Test 2: set nolinebreak list
▕———abcdef hijklmn▕—
+pqrstuvwxyz␣1060ABC
+DEFGHIJKLMNOPˑ¶    
¶                   
	*mask = nil;

Test 3: set linebreak nolist
    *mask = nil;    
~                   
~                   
~