Multi-line field descriptions printing newline

[tgomesfork]

Following this type-graphql discussion, since graphql-js v16.0.0, multi-line field descriptions do not seem to be printed correctly.

-  """
-  Get the custom reservation list configuration
-  Capability required: `custom_reservation_list`
-  """
+  "\nGet the custom reservation list configuration\nCapability required: `custom_reservation_list`\n"

Previously we were able to define them like this:

@Query(() => CustomReservationList, {
  description: `
    Get the custom reservation list configuration
    Capability required: \`custom_reservation_list\`
  `,

Now to get the proper printed schema, we need to put the \n ourselves on the description:

  @Query(() => CustomReservationList, {
    description: `Get the custom reservation list configuration\nCapability required: \`custom_reservation_list\``,
    nullable: true,
    deprecationReason: 'Use restaurant.customReservationList',
  })

I think something changed on the printSchema utility function.

[MukundaKatta]

Yeah this changed in v16 when description handling switched to using block-string serialization only when the content naturally fits. The workaround is to avoid the leading whitespace in your template literal — graphql-js trims consistent leading whitespace from each line, so if you indent the whole block the trim logic can't kick in. A tagged dedent helper (or dedent from npm) around your description string gives you back the v15 behaviour cleanly.