readline: don't dereference possible NULL pointer
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4e72384318
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@ -114,7 +114,7 @@ int rdln::readline_buffer::sync()
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int end = 0, point = 0;
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#endif
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if (rl_end || *rl_prompt)
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if (rl_end || (rl_prompt && *rl_prompt))
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{
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#if RL_READLINE_VERSION >= 0x0700
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rl_clear_visible_line();
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@ -137,7 +137,7 @@ int rdln::readline_buffer::sync()
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while ( this->snextc() != EOF );
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#if RL_READLINE_VERSION < 0x0700
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if (end || *rl_prompt)
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if (end || (rl_prompt && *rl_prompt))
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{
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rl_restore_prompt();
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rl_line_buffer = line;
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