4.4.9_4

• (#400) add check the existance of commands for subcomplete.lua (Thx @tsuyoshicho )
• (#401) add subcompletion choco/chocolaty (Thx @tsuyoshicho )
• Fix: the layout on ls and Ctrl-O selection was broken in WindowsTerminal
• go-readline-ny v0.4.4: Fix: When ANYCHARACTER + Ctrl-B + ZeroWidthJoin Sequence are typed, view was broken
• go-readline-ny v0.4.5: Variation Selector Sequence can include ZeroWidthJoinerSequence
• go-readline-ny v0.4.6: Editing Combining Enclosing Keycap after Variation Selector (#️⃣)
• Fix: (#402) "echo !xxx" causes unexpected end of nyagos (Thx @masamitsu-murase)
• go-readline-ny v0.4.7: REGIONAL INDICATOR (U+1F1E6..U+1F1FF) 🇦 🇧 🇨...
• go-readline-ny v0.4.8: WAVING WHITE FLAG and its variations (U+1F3F3 U+FE0F?)🏳/🏳️
• go-readline-ny v0.4.8: RAINBOW FLAG (U+1F3F3 U+200D U+1F308) 🏳‍🌈

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• (#400) サブコマンド補完向けのコマンドの存在チェック追加(Thx @tsuyoshicho )
• (#401) choco/chocolaty 向けサブコマンド名補完追加(Thx @tsuyoshicho )
• WindowsTerminal で ls や Ctrl-Oの選択時のレイアウトが崩れる問題を修正
• go-readline-ny v0.4.4: 任意の一字 + Ctrl-B + 合字が入力された時、表示が乱れる問題を修正
• go-readline-ny v0.4.5: 合字の異体字サポート
• go-readline-ny v0.4.6: 異体字の後の囲み記号の編集をサポート(#️⃣)…なお、表示は #□ のまま
• (#402) "echo !xxx" でシェルがいきなり終了してしまう問題を修正 (Thx @masamitsu-murase)
• go-readline-ny v0.4.7: REGIONAL INDICATOR (U+1F1E6..U+1F1FF) でカーソル位置が狂わないようにした 🇦 🇧 🇨...
• go-readline-ny v0.4.8: WAVING WHITE FLAG and its variations (U+1F3F3 U+FE0F?) 🏳/🏳️
• go-readline-ny v0.4.8: RAINBOW FLAG (U+1F3F3 U+200D U+1F308) 🏳‍🌈