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-rw-r--r--source/a/pkgtools/scripts/upgradepkg2
1 files changed, 1 insertions, 1 deletions
diff --git a/source/a/pkgtools/scripts/upgradepkg b/source/a/pkgtools/scripts/upgradepkg
index bb150483a..1acae7d60 100644
--- a/source/a/pkgtools/scripts/upgradepkg
+++ b/source/a/pkgtools/scripts/upgradepkg
@@ -119,7 +119,7 @@ if [ ! -d $INSTLOCKDIR ]; then
fi
# Set default line length for terse mode:
-if which tput 1> /dev/null 2> /dev/null ; then
+if tty -s && which tput 1> /dev/null 2> /dev/null ; then
TERSELENGTH=$(tput cols)
else
TERSELENGTH=80