1 files changed, 8 insertions, 6 deletions
diff --git a/Master/texmf-dist/doc/eplain/util/idxuniq b/Master/texmf-dist/doc/eplain/util/idxuniq
index 6ee7d225f5c..599d9b593cb 100644
--- a/Master/texmf-dist/doc/eplain/util/idxuniq
+++ b/Master/texmf-dist/doc/eplain/util/idxuniq
@@ -1,26 +1,28 @@
 #!/usr/bin/awk -f
-
+#
 # (This file is public domain.)
-
+#
+# This file is part of the Eplain macro package.
+#
 # This script filters input lines (which are expected to be a list of
 # `\indexentry' lines for MakeIndex) eliminating matching lines.  The comparison
 # is done without regard to hyperlink label names (in the form `IDX*', where `*'
 # stands for a non-negative integer).
-
+#
 # This has to be done to avoid terms which differ only in hyperlink label names
 # embedded into them, because MakeIndex will treat these otherwise identical
 # terms as distinct, listing more than once a page number for equivalent terms
 # on the same page.
-
+#
 # `stripped' array is indexed by `\indexentry' lines stripped off the hyperlink
 # label name.  For each term, we use its stripped version as a key into the
 # `stripped' array to increment its element.  This records the fact that we have
 # seen the term with such key.  Also, we add the (full) `\indexentry' line to
 # the `terms' array, but only if we have not yet seen a term with such key.
-
+#
 # The idea was borrowed from Edition 3 of `GAWK: Effective AWK Programming: A
 # User's Guide for GNU Awk', which contains the following credit:
-
+#
 #       histsort.awk --- compact a shell history file
 #       Thanks to Byron Rakitzis for the general idea