[PATCH 068/177] man/tput.1: Document additional environment variables read.

[G. Branden Robinson]

---
 man/tput.1 | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/man/tput.1 b/man/tput.1
index 067b72f6a..9385427a2 100644
--- a/man/tput.1
+++ b/man/tput.1
@@ -462,15 +462,21 @@ .SH EXIT STATUS
 .TE
 .SH ENVIRONMENT
 .B \%@TPUT@
-reads one environment variable.
-.TP 8n \" "TERM" + 2n + adjustment for PDF
+reads up to three environment variables
+if the
+.B \-T
+option is not specified.
+.TP 9n \" "COLUMNS" + 2n
+.I COLUMNS
+specifies the width of the screen in characters.
+.TP
+.I LINES
+specifies the height of the screen in characters.
+.TP
 .I TERM
 denotes the terminal type.
 Each terminal type is distinct,
 though many are similar.
-The
-.B \-T
-option overrides its value.
 .SH FILES
 .TP
 .I @DATADIR@/tabset
-- 
2.30.2

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