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nixos/nixpkgs/docs: fix typo in assertOneOf example

This example was confusing at first because the element the message
indicated wasn't in the list of possible values was but the possible
values didn't match up either. This ensures the example is consistent
with the logic being presented.

Alex Brandt 195fe01e f2ea4d95

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unified split
Changed files
+1 -1
doc
functions
library
asserts.xml
+1 -1
doc/functions/library/asserts.xml 
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   <title>Ensuring a user provided a possible value</title>


     

       
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<programlisting><![CDATA[


     

       
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let sslLibrary = "bearssl";


     

       
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in lib.asserts.assertOneOf "sslLibrary" sslLibrary [ "openssl" "bearssl" ];


     

       

       
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+

       
in lib.asserts.assertOneOf "sslLibrary" sslLibrary [ "openssl" "libressl" ];


     

       
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=> false


     

       
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stderr> trace: sslLibrary must be one of "openssl", "libressl", but is: "bearssl"


     

       
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        ]]></programlisting>