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-rw-r--r--src/doc/rustc-dev-guide/src/diag.md3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/doc/rustc-dev-guide/src/diag.md b/src/doc/rustc-dev-guide/src/diag.md
index 26fc200af69..e4c257fd8a4 100644
--- a/src/doc/rustc-dev-guide/src/diag.md
+++ b/src/doc/rustc-dev-guide/src/diag.md
@@ -261,4 +261,5 @@ For example,
 ```
 
 This defines the `nonstandard_style` group which turns on the listed lints. A
-user can turn on these lints by using `!#[warn(nonstandard_style)]`.
+user can turn on these lints with a `!#[warn(nonstandard_style)]` attribute in
+the source code, or by passing `-W nonstandard-style` on the command line.