Fixes #114: autojump suppresses the error message caused by 'j --help'.

autojump.bash

@@ -80,5 +80,4 @@ case $PROMPT_COMMAND in
 esac
 
 alias jumpstat="autojump --stat"
-function j { new_path="$(autojump $@)";if [ -n "$new_path" ]; then echo -e "\\033[31m${new_path}\\033[0m"; cd "$new_path";else false; fi }
-
+function j { new_path="$(autojump $@)";if [ -d "${new_path}" ]; then echo -e "\\033[31m${new_path}\\033[0m"; cd "${new_path}";else false; fi }

autojump.zsh

@@ -52,4 +52,4 @@ preexec_functions+=autojump_preexec
 
 alias jumpstat="autojump --stat"
 
-function j { local new_path="$(autojump $@)";if [ -n "${new_path}" ]; then echo -e "\\033[31m${new_path}\\033[0m"; cd "${new_path}";else false; fi }
+function j { local new_path="$(autojump $@)";if [ -d "${new_path}" ]; then echo -e "\\033[31m${new_path}\\033[0m"; cd "${new_path}";else false; fi }