[vte] vte.sh: Fix tilde replacement for bash-4.3.

[Egmont Koblinger <egmontkob src gnome org>]

commit f09439bf7d05cb81c37e3e1a8a4af71f489700ba
Author: Colin Guthrie <colin mageia org>
Date:   Wed Jul 23 22:44:40 2014 +0200

    vte.sh: Fix tilde replacement for bash-4.3.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=733504

 src/vte.sh |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/vte.sh b/src/vte.sh
index 3b57f83..95d20c7 100644
--- a/src/vte.sh
+++ b/src/vte.sh
@@ -50,7 +50,9 @@ __vte_osc7 () {
 }
 
 __vte_prompt_command() {
-  printf "\033]0;%s %s:%s\007%s" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/~}" "$(__vte_osc7)"
+  local pwd='~'
+  [ "$PWD" != "$HOME" ] && pwd=${PWD/#$HOME\//\~\/}
+  printf "\033]0;%s %s:%s\007%s" "${USER}" "${HOSTNAME%%.*}" "${pwd}" "$(__vte_osc7)"
 }
 
 case "$TERM" in