prefork-interp: define what our invocation looks like

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/cprogs/prefork-interp.c b/cprogs/prefork-interp.c
index 07e9fb0dd94eb4ee32cbac996b92fc27aff938fc..29d39fe5e2ef8e7676713a04c7ae7c459821b621 100644 (file)
--- a/cprogs/prefork-interp.c
+++ b/cprogs/prefork-interp.c
@@ -1,8 +1,12 @@
 /*
  * "Interpreter" that you can put in #! like this
  *   #!/usr/bin/prefork-interp [<options>] <interpreter>
+ *
+ * Usages:
+ *   prefork-interp  [<option> ..] <interpreter>  [<script> [<args> ...]]
+ *   prefork-interp  [<option>,..],<interpreter>   <script> [<args> ...]
+ *   prefork-interp '[<option> ..] <interpreter>'  <script> [<args> ...]
  */
-
 /*
  * Process structure:
  *  client (C wrapper)        connects to server