replaced the fancy ►_◄ heredoc EOF marker to make Raspberry Pis happy

.tmux.conf

@@ -1,4 +1,4 @@
-# cat << ►_◄ > /dev/null
+# cat << EOF > /dev/null
 # https://github.com/gpakosz/.tmux
 # (‑●‑●)> released under the WTFPL v2 license, by Gregory Pakosz (@gpakosz)
 # /!\ do not edit this file
@@ -144,7 +144,7 @@ if '[ -f ~/.tmux.conf.local ]' 'source ~/.tmux.conf.local'
 run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 
 
-# ►_◄
+# EOF
 #
 # # exit the script if any statement returns a non-true return value
 # set -e