struct/buf.3: Fix synopsis for `BSTEP'.

diff --git a/struct/buf.3 b/struct/buf.3
index 76c7dcb..8964a09 100644 (file)
--- a/struct/buf.3
+++ b/struct/buf.3
@@ -167,7 +167,7 @@ buf \- reading and writing stuff in buffers
 
 .BI "int buf_ensure(buf *" b ", size_t " sz );
 .BI "int BENSURE(buf *" b ", size_t " sz );
-.BI "octet *BSTEP(buf *" b );
+.BI "octet *BSTEP(buf *" b ", size_t " sz );
 
 .BI "void *buf_get(buf *" b ", size_t " sz );
 .BI "void *buf_put(buf *" b ", const void *" p ", size_t " sz );