Fix typo in `String::try_reserve_exact` docs

Copying the pattern from `Vec::try_reserve_exact` and `String::try_reserve`,
it looks like this doc comment is intending to refer to the currently-being-documented
function.

1 files changed, 1 insertions, 1 deletions

diff --git a/library/alloc/src/string.rs b/library/alloc/src/string.rs
index 7c0faf0659a..30eabcb95ec 100644
--- a/library/alloc/src/string.rs
+++ b/library/alloc/src/string.rs
@@ -1038,7 +1038,7 @@ impl String {
     }
 
     /// Tries to reserve the minimum capacity for exactly `additional` more elements to
-    /// be inserted in the given `String`. After calling `reserve_exact`,
+    /// be inserted in the given `String`. After calling `try_reserve_exact`,
     /// capacity will be greater than or equal to `self.len() + additional`.
     /// Does nothing if the capacity is already sufficient.
     ///