[kotlin] Add missing quote in option description

[ctamisier]

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[wing328]

@ctamisier thanks for the PR. You will need to update

openapi-generator/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractKotlinCodegen.java

Line 47 in 65bee03

public static final String SERIALIZATION_LIBRARY_DESC = "What serialization library to use: 'moshi' (default), or 'gson' or 'jackson or 'kotlinx_serialization'";

as well

[wing328]

Thanks for the PR, which has been merged. Have a nice weekend.

[ctamisier]

No prob, have a nice weekend too !