[PATCH] ascii.7: add vertical rule to separate the two columns

I regularly get mildly lost in this table (and, indeed, didn't realise
it had two columns the first few times I used it to look at something
from the left column) ‒ separating the two columns improves clarity,
and makes which soup of numbers belongs to which character
much more obvious

Other encodings don't need this as they don't use double-columnated
tables

Signed-off-by: Ahelenia Ziemiańska <redacted>
---
 man7/ascii.7 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/man7/ascii.7 b/man7/ascii.7
index f1c0c8d74..053b13809 100644
--- a/man7/ascii.7
+++ b/man7/ascii.7

@@ -48,7 +48,7 @@ C program \f(CW\(aq\eX\(aq\fP escapes are noted.
 .ft CW
 \}
 .TS
-l l l l l l l l.
+l l l l | l l l l.
 Oct	Dec	Hex	Char	Oct	Dec	Hex	Char
 _
 000	0	00	NUL \(aq\e0\(aq (null character)	100	64	40	@

-- 
2.20.1