signal: Fix inaccurate comment.

I don't know why I wrote that the signal combinators are "higher order
signals", but that's not true.  They are just procedures (some of which
are higher order procedures) that take signals as arguments.

* sly/signal.scm: Fix comment.

1 files changed, 1 insertions, 1 deletions

diff --git a/sly/signal.scm b/sly/signal.scm
index 83f1ea5..f5dd3cf 100644
--- a/sly/signal.scm
+++ b/sly/signal.scm
@@ -195,7 +195,7 @@ be coerced into one."
        (signal-let* rest body ...)))))
 
 ;;;
-;;; Higher Order Signals
+;;; Signal Combinators
 ;;;
 
 (define (hook->signal hook init proc)