Fix for Pipenv bug which locks COLUMNS if exported.

pypa/pipenv#6169

dotfiles/.bash_aliases

@@ -129,7 +129,7 @@ _after_command()
 
     # The below program will exit successfully if a notification is to be
     # shown.
-    if PS1=$(custom-bash-prompt "$last_command" $exit_code $__begin "$(__git_ps1 '   %s')")
+    if PS1=$(COLUMNS=$COLUMNS custom-bash-prompt "$last_command" $exit_code $__begin "$(__git_ps1 '   %s')")
     then
         ([ $__window -ne $(getactivewindow) ] && notify-send -i dialog-information "CLI Ready" "$last_command" &)
     fi

dotfiles/.bashrc

@@ -58,8 +58,6 @@ envarmunge PATH /usr/local/texlive/*/bin/x86_64-linux
 
 export BASH_COMPLETION_USER_DIR=$HOME/.local/share/bash-completion
 export BAT_PAGER='less -iRF'
-# Make this available to the C program which reports command completion.
-export COLUMNS
 export EDITOR=vim
 export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01:range1=32:range2=34:fixit-insert=32:fixit-delete=31:diff-filename=01:diff-hunk=32:diff-delete=31:diff-insert=32:type-diff=01;32'
 export GIT_EDITOR=vim