environ.7: Note the default if PAGER is not defined

Reported-by: Bastien Roucariès <rouca@debian.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man7/environ.7 b/man7/environ.7
index ab71e5a45a6a24aab2fd97d6e55fcd98ccaf7bae..8fb80f289f8ee994ea53f9f0542e0aafd2021178 100644 (file)
--- a/man7/environ.7
+++ b/man7/environ.7
@@ -141,6 +141,13 @@ The user's preferred utility to display text files.
 Any string acceptable as a command-string operand to the
 .I sh\ \-c
 command shall be valid.
+If
+.B PAGER
+is null or is not set,
+then applications that launch a pager will default to a program such as
+.BR less (1)
+or
+.BR more (1).
 .TP
 .BR EDITOR / VISUAL
 The user's preferred utility to edit text files.