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-rw-r--r--usr.bin/m4/m4.15
1 files changed, 3 insertions, 2 deletions
diff --git a/usr.bin/m4/m4.1 b/usr.bin/m4/m4.1
index 3554b55..a4e6ea8 100644
--- a/usr.bin/m4/m4.1
+++ b/usr.bin/m4/m4.1
@@ -359,8 +359,9 @@ macro may be used to change the exit status from the input file.
.Sh COMPATIBILITY
The
.Nm
-utility follows the Single Unix 2 specification, along with a few extensions
-taken from GNU-m4.
+utility follows the
+.St -susv2 ,
+along with a few extensions taken from GNU-m4.
Flags
.Fl I , d ,
and
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