Display git status on new line on tiny terminals

The limit of the number of columns is 50.

Install/Templates/fish/functions/fish_prompt.fish

@@ -20,6 +20,11 @@ function fish_prompt --description 'Write out the prompt'
     echo -n (prompt_pwd)
     set_color normal
 
+	# Newline on tiny screens
+	if test $COLUMNS -lt 50
+		echo
+	end
+
     __terlar_git_prompt
     __fish_hg_prompt
     echo