man/make.conf.5: mention LINGUAS in USE_ORDER doc

The reason for env.d being in USE_ORDER is not really obvious, so
mention LINGUAS as an example (from bug #187016).

diff --git a/man/make.conf.5 b/man/make.conf.5
index 23d5e2ba7614bcf7e5b9cd845bd0e59f4696f61a..b9206b4a50d88ea4da6e586b8225712873c7185b 100644 (file)
--- a/man/make.conf.5
+++ b/man/make.conf.5
@@ -886,7 +886,8 @@ USE from \fBebuild\fR(5) IUSE defaults
 USE from make.defaults and package.use in the repo (see \fBportage\fR(5))
 .TP
 .B env.d
-USE from the environment variables defined by files in \fI/etc/env.d/\fR
+USE from the environment variables, such as LINGUAS, defined by files in
+\fI/etc/env.d/\fR
 .RE
 
 .SH "REPORTING BUGS"