Fix bash prompt to show git status correctly

bash/.config/bash/prompt.sh

@@ -41,7 +41,7 @@ function parse_git_status {
         return
     fi
 
-    if [[ $(git status 2> /dev/null | grep -c "working tree|directory clean") -eq 0 ]]; then
+    if [[ $(git status 2> /dev/null | grep -c "working tree clean") -eq 0 ]]; then
         echo ' ∓'
     fi
 }