environment: don't save COLUMNS

diff --git a/bin/phase-functions.sh b/bin/phase-functions.sh
index 664202ad9d29f94950472e2ac90176c35e48baf9..26ffde6b4c9356b36589da3c49bf1c2ac049149b 100644 (file)
--- a/bin/phase-functions.sh
+++ b/bin/phase-functions.sh
@@ -83,7 +83,7 @@ filter_readonly_variables() {
        local x filtered_vars
        local readonly_bash_vars="BASHOPTS BASHPID DIRSTACK EUID
                FUNCNAME GROUPS PIPESTATUS PPID SHELLOPTS UID"
-       local bash_misc_vars="BASH BASH_.* COMP_WORDBREAKS HISTCMD
+       local bash_misc_vars="BASH BASH_.* COLUMNS COMP_WORDBREAKS HISTCMD
                HISTFILE HOSTNAME HOSTTYPE IFS LINENO MACHTYPE OLDPWD
                OPTERR OPTIND OSTYPE POSIXLY_CORRECT PS4 PWD RANDOM
                SECONDS SHELL SHLVL _"