Ignore bind complaints if not sourcing install script

lib/git/aliases_and_bindings.sh

@@ -101,10 +101,10 @@ complete -o nospace -o filenames -F _git_index_tab_completion $git_index_alias
 
 # Cross-shell key bindings
 _bind(){
-  if [[ $shell == "zsh" ]]; then
-    bindkey -s "$1" "$2"   # zsh
-  else
-    bind "\"$1\": \"$2\""  # bash
+  if [[ $shell == "zsh" ]]; then # zsh
+    bindkey -s "$1" "$2"
+  else # bash
+    bind "\"$1\": \"$2\"" > /dev/null
   fi
 }