Generate the nix.conf docs from the source code

This means we don't have two (divergent) sets of option descriptions
anymore.

1 files changed, 6 insertions, 4 deletions

diff --git a/src/libutil/logging.hh b/src/libutil/logging.hh
index 09619aac6..63cb2b268 100644
--- a/src/libutil/logging.hh
+++ b/src/libutil/logging.hh
@@ -37,10 +37,12 @@ typedef uint64_t ActivityId;
 
 struct LoggerSettings : Config
 {
-    Setting<bool> showTrace{this,
-        false,
-        "show-trace",
-        "Whether to show a stack trace on evaluation errors."};
+    Setting<bool> showTrace{
+        this, false, "show-trace",
+        R"(
+          Where Nix should print out a stack trace in case of Nix
+          expression evaluation errors.
+        )"};
 };
 
 extern LoggerSettings loggerSettings;