doc: Clarify httrcall limit functionality further.

diff --git a/doc/httrcall.doc b/doc/httrcall.doc
index a95e782..1e94ab2 100644 (file)
--- a/doc/httrcall.doc
+++ b/doc/httrcall.doc
@@ -35,8 +35,8 @@ OPTIONS
        allowed to run at one time. If further request are received
        while 'LIMIT' children are running, *httrcall* will block,
        waiting for one to exit before processing further requests. If
-       no *-l* option is specified, *httrcall* imposes no limit on
-       the number of children that may run.
+       no *-l* option is specified (or specified as zero), *httrcall*
+       imposes no limit on the number of children that may run.
 
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