(navigate) fixed path completions for book add

scripts/navigate_bash_setup.sh

@@ -44,7 +44,9 @@ function _book {
         fi
     elif [[ COMP_CWORD -eq 3 ]]; then
         if [[ "${COMP_WORDS[1]}" = "add" ]]; then
-            COMPREPLY=($(compgen -o dirnames -- $CURRENT_WORD))
+            temp=($(compgen -o dirnames -- $CURRENT_WORD))
+            COMPREPLY=("${temp[@]/%//}")
+            unset temp
         fi
     fi
 }
@@ -59,4 +61,4 @@ function _pop {
 
 complete -o dirnames push
 complete -F _pop pop
-complete -F _book book
+complete -o nospace -F _book book