command line: --eargs semantics change.

The --eargs mechanism won't perform a blind substring
replacement of {} with the following argument. Only
arguments which match {} exactly are replaced.

* eval.c (retf): Static function becomes extern.

* eval.h (retf): Declared.

* txr.c (txr_main): Replace the filtering logic on the
split eargs argument list to just look for items
equal to the string "{}" and replace with the following
argument.

* txr.1: Updated --eargs documentation.

1 files changed, 1 insertions, 1 deletions

diff --git a/eval.c b/eval.c
index 4e6766d0..220355b3 100644
--- a/eval.c
+++ b/eval.c
@@ -5246,7 +5246,7 @@ static val do_retf(val ret, struct args *args)
   return ret;
 }
 
-static val retf(val ret)
+val retf(val ret)
 {
   return func_f0v(ret, do_retf);
 }