===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/m4/m4.1,v
retrieving revision 1.17
retrieving revision 1.18
diff -u -r1.17 -r1.18
--- src/usr.bin/m4/m4.1	2000/07/06 04:06:55	1.17
+++ src/usr.bin/m4/m4.1	2000/07/24 23:08:25	1.18
@@ -1,4 +1,4 @@
-.\"	@(#) $OpenBSD: m4.1,v 1.17 2000/07/06 04:06:55 aaron Exp $
+.\"	@(#) $OpenBSD: m4.1,v 1.18 2000/07/24 23:08:25 espie Exp $
 .\"
 .\"
 .Dd January 26, 1993
@@ -139,6 +139,10 @@
 if no arguments are passed.
 .It Ic errprint
 Prints the first argument on the standard error output stream.
+.It Ic esyscmd
+Pass its first argument to a shell and returns the shell's standard output.
+Note that the shell shares its standard input and standard error with
+.Nm
 .It Ic eval
 Computes the first argument as an arithmetic expression using 32-bit
 arithmetic.