Update VirtAddr::try_new documentation

Co-authored-by: Philipp Oppermann <[email protected]>

src/addr.rs

@@ -79,9 +79,10 @@ impl VirtAddr {
 
     /// Tries to create a new canonical virtual address.
     ///
-    /// This function tries to performs sign extension of bit 47 to make the
-    /// address canonical. It succeeds if bits 48 to 64 are a correct sign
-    /// extension (i.e. copies of bit 47). Else, an error is returned.
+    /// This function checks wether the given address is canonical
+    /// and returns an error otherwise. An address is canoncial
+    /// if bits 48 to 64 are a correct sign
+    /// extension (i.e. copies of bit 47).
     #[inline]
     pub const fn try_new(addr: u64) -> Result<VirtAddr, VirtAddrNotValid> {
         let v = Self::new_truncate(addr);