[vte] Revert "vte.sh: Append to PROMPT_COMMAND rather than overwriting it"

[Christian Persch <chpe src gnome org>]

commit 12e706ba1601896fc233ad97255a37281e70dc09
Author: Christian Persch <chpe gnome org>
Date:   Mon Jan 19 12:28:22 2015 +0100

    Revert "vte.sh: Append to PROMPT_COMMAND rather than overwriting it"
    
    This reverts commit 1e6e46f90a035a51b37576d059d6108ece1b4eaa.
    
    Revert this patch since it'll cause __vte_prompt_command to be
    twice in PROMPT_COMMAND with the default fedora /etc/bashrc for
    non-login shells.
    
    Conflicts:
        src/vte.sh

 src/vte.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/vte.sh b/src/vte.sh
index f4e47d4..2d211ca 100644
--- a/src/vte.sh
+++ b/src/vte.sh
@@ -57,7 +57,7 @@ __vte_prompt_command() {
 
 case "$TERM" in
   xterm*|vte*)
-    [ -n "$BASH_VERSION" ] && PROMPT_COMMAND="${PROMPT_COMMAND:+$PROMPT_COMMAND; }__vte_prompt_command"
+    [ -n "$BASH_VERSION" ] && PROMPT_COMMAND="__vte_prompt_command"
     [ -n "$ZSH_VERSION"  ] && precmd_functions+=(__vte_osc7)
     ;;
 esac