[ZSH] Fix path ordering

zsh/.zshrc

@@ -67,7 +67,7 @@ fi
 typeset -U path PATH
 [[ -z "${VIRTUAL_ENV:-}" ]] && unset VIRTUAL_ENV
 if [[ -n "$VIRTUAL_ENV" && -f "$VIRTUAL_ENV/bin/activate" ]]; then
-    if [[ ":$PATH:" != *":$VIRTUAL_ENV/bin:"* ]]; then
+    if [[ ${PATH%%:*} != "$VIRTUAL_ENV/bin" ]]; then
         source "$VIRTUAL_ENV/bin/activate"
     fi
 fi