added \tooldx;

--- a/doc-src/iman.sty	Wed May 14 18:41:48 1997 +0200
+++ b/doc-src/iman.sty	Wed May 14 18:42:09 1997 +0200
@@ -34,6 +34,8 @@
 \newcommand\tydx[1]{{\tt#1}\index{#1@{\tt#1} type}}
 \newcommand\thydx[1]{{\tt#1}\index{#1@{\tt#1} theory}}
 
+\newcommand\tooldx[1]{{\tt#1}\index{#1@{\tt#1} tool}}
+
 %for cross-references: 2nd argument (page number) is ignored
 \newcommand\see[2]{{\it see \/}{#1}}
 \newcommand\seealso[2]{{\it see also \/}{#1}}