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-rw-r--r--share/doc/psd/16.lex/lex.ms5
1 files changed, 5 insertions, 0 deletions
diff --git a/share/doc/psd/16.lex/lex.ms b/share/doc/psd/16.lex/lex.ms
index 36aa783..5f53a58 100644
--- a/share/doc/psd/16.lex/lex.ms
+++ b/share/doc/psd/16.lex/lex.ms
@@ -68,6 +68,11 @@ M. E. Lesk and E. Schmidt
.AI
.MH
.AB
+.ps +1
+NOTE: This document describes the historical Unix version of \fIlex\fP.
+FreeBSD is supplied with \fIflex\fP\| which is a compatible replacement.
+See the extensive documentation in \fIflex(1)\fP\| for details.
+.ps
.sp
.bd I 2
.\".nr PS 8
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