peg: document (repeat) stack effect can return f.

diff --git a/basis/peg/peg.factor b/basis/peg/peg.factor
index ca1a795f0a02585f5a9041bbddc4988b302fd589..9da44893ac3ba66f75b0fad1ceb60311f105a82e 100644 (file)
--- a/basis/peg/peg.factor
+++ b/basis/peg/peg.factor
@@ -401,7 +401,7 @@ M: choice-parser (compile)
 
 TUPLE: repeat0-parser parser ;
 
-: (repeat) ( quot: ( -- result ) result -- result )
+: (repeat) ( quot: ( -- result/f ) result -- result )
     over call [
         [ remaining>> >>remaining ] [ ast>> ] bi
         over ast>> push (repeat)