Show targeting prompt when exiting targeting help.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1459 c06c8d41-db1a-0410-9941-cceddc491573
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// Prompts might get scrolled off if you have too few lines available.
// We'll live with that.
if ( !just_looking )
mprf(MSGCH_PROMPT, "%s (%s)", prompt? prompt : "Aim",
target_mode_help_text(restricts));