Actually show return code on failure

themes/tjkirch.zsh-theme

@@ -7,7 +7,7 @@ function prompt_char {
 	if [ $UID -eq 0 ]; then echo "%{$fg[red]%}#%{$reset_color%}"; else echo $; fi
 }
 
-PROMPT='%(?, ,%{$fg[red]%}FAIL%{$reset_color%}
+PROMPT='%(?, ,%{$fg[red]%}FAIL: $?%{$reset_color%}
 )
 %{$fg[magenta]%}%n%{$reset_color%}@%{$fg[yellow]%}%m%{$reset_color%}: %{$fg_bold[blue]%}%~%{$reset_color%}$(git_prompt_info)
 %_ $(prompt_char) '