git: fix evaluation error on null extraConfig
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@ -71,7 +71,7 @@ in
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extraConfig = mkOption {
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extraConfig = mkOption {
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type = types.lines;
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type = types.lines;
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default = null;
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default = "";
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description = "Additional configuration to add.";
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description = "Additional configuration to add.";
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};
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};
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};
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};
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