locale.5: Clarify AM/PM settings a bit

localedef(1) complains if really undefined, should be empty instead.
Also: add some SEE ALSO references.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man5/locale.5 b/man5/locale.5
index 572833d199c843305f61e2e77c0d40a95f07caa0..e7e38bd9046e7ffc1a37d4eafa46579f915b1724 100644 (file)
--- a/man5/locale.5
+++ b/man5/locale.5
@@ -997,7 +997,7 @@ followed by the appropriate representation of the
 and
 .B pm
 strings.
-This should be defined only for locales using AM/PM convention.
+This should be left empty for locales not using AM/PM convention.
 .TP
 .I d_t_fmt
 followed by the appropriate date and time format.
@@ -1010,7 +1010,7 @@ followed by the appropriate time format.
 .TP
 .I t_fmt_ampm
 followed by the appropriate time format when using 12h clock format.
-This should be defined only for locales using the AM/PM convention.
+This should be left empty for locales not using AM/PM convention.
 .TP
 .I week
 followed by a list of three values:
@@ -1133,4 +1133,7 @@ This manual page isn't complete.
 .BR setlocale (3),
 .BR uselocale (3),
 .BR charmap (5),
-.BR locale (7)
+.BR charsets (7),
+.BR locale (7),
+.BR unicode (7),
+.BR utf-8 (7)