Many small edits.
diff --git a/man/man3/wait.3 b/man/man3/wait.3
index 445f29c..28d5d73 100644
--- a/man/man3/wait.3
+++ b/man/man3/wait.3
@@ -144,3 +144,16 @@
 .SH DIAGNOSTICS
 These routines set
 .IR errstr .
+.SH BUGS
+To avoid name conflicts with the underlying system,
+.IR wait ,
+.IR waitpid ,
+and
+.I waitfor
+are preprocessor macros defined as
+.IR p9wait ,
+.IR p9waitpid ,
+and
+.IR p9waitfor ;
+see 
+.IR intro (3).