[PATCH 129/177] man/curs_overlay.3x: Standardize and annotate SVr4 return value admonition.

[G. Branden Robinson]

---
 man/curs_overlay.3x | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/man/curs_overlay.3x b/man/curs_overlay.3x
index 17a464c61..26c81026d 100644
--- a/man/curs_overlay.3x
+++ b/man/curs_overlay.3x
@@ -108,6 +108,10 @@ .SH PORTABILITY
 It further specifies their behavior in the presence of characters
 with multibyte renditions (not yet supported in this implementation).
 .\" XXX: stale?  ncurses is fine with multibyte characters now, no?
+.PP
+SVr4 describes a successful return value only as
+\*(``an integer value other than
+.IR ERR \*(''. \" Courier roman in source; SVID 4, vol. 3, p. 522
 .SH SEE ALSO
 \fB\%curses\fP(3X),
 \fB\%curs_pad\fP(3X),
-- 
2.30.2

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