Tweak write_fmt doc.

Previous version wrongly used `but` while the two parts of the sentence are not contradicting but completing with each other.
rust-lang · Sep 5, 2021 · bfb2b02 · bfb2b02
1 parent 7e1e3eb
commit bfb2b02
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs
@@ -1611,7 +1611,7 @@ pub trait Write {
     /// encountered.
     ///
     /// This method is primarily used to interface with the
-    /// [`format_args!()`] macro, but it is rare that this should
+    /// [`format_args!()`] macro, and it is rare that this should
     /// explicitly be called. The [`write!()`] macro should be favored to
     /// invoke this method instead.
     ///