Index: tests/testx.xotcl
===================================================================
diff -u -r48d5751e9aeb6a4f388f6531a9248c1847b22cae -rc942f4e117d2aa3c8594702e0476a3f73a4147df
--- tests/testx.xotcl	(.../testx.xotcl)	(revision 48d5751e9aeb6a4f388f6531a9248c1847b22cae)
+++ tests/testx.xotcl	(.../testx.xotcl)	(revision c942f4e117d2aa3c8594702e0476a3f73a4147df)
@@ -3985,7 +3985,7 @@
     catch {
 	o z3 -b abc -- -b
     } m
-  errorCheck $m {expected boolean value but got "abc"} "not boolean"
+  errorCheck $m {expected boolean value but got "abc" for parameter -b} "not boolean"
 
     set ::r ""    
     #o z4 -c 1 1