[master] 0c434255d Refer to vsl(7) from vsl_mask documentation

[Nils Goroll]

commit 0c434255d514047f66343d7c4cf8b2c58ab2df1d
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Thu Mar 7 11:05:58 2024 +0100

    Refer to vsl(7) from vsl_mask documentation

diff --git a/include/tbl/params.h b/include/tbl/params.h
index 5f4359594..e96d75483 100644
--- a/include/tbl/params.h
+++ b/include/tbl/params.h
@@ -1899,7 +1899,7 @@ PARAM_BITS(
 	"\tall\tEnable all tags\n"
 	"\tdefault\tSet default value (deprecated: use param.reset)\n"
 	"\nUse +/- prefix in front of VSL tag name to unmask/mask "
-	"individual VSL messages.")
+	"individual VSL messages. See vsl(7) for possible values.")
 PARAM_POST
 
 #undef PARAM_ALL