Update src/_trash: add intendation variables

Co-authored-by: Shohei YOSHIDA <syohex@gmail.com>

src/_trash

@@ -47,3 +47,10 @@ case $state in
 esac
 
 return $ret
+# Local Variables:
+# mode: Shell-Script
+# sh-indentation: 2
+# indent-tabs-mode: nil
+# sh-basic-offset: 2
+# End:
+# vim: ft=zsh sw=2 ts=2 et