doc: improve release note for Windows hosts file being respected

Make a grammar fix (searches -> searches for) and simplify "when
building with" phrase.

For golang#61422.

Change-Id: I179b3816c0e223a16e4969290b2c1ed19d44c556
Reviewed-on: https://go-review.googlesource.com/c/go/+/549457
Reviewed-by: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>

doc/go1.22.html

@@ -621,8 +621,8 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
     </p>
 
     <p><!-- CL 467335 -->
-      The Go DNS Resolver, used when building the binary with "-tags=netgo",
-      now searches a matching name in the Windows hosts file,
+      The Go DNS Resolver, used when building with "-tags=netgo",
+      now searches for a matching name in the Windows hosts file,
       located at <code>%SystemRoot%\System32\drivers\etc\hosts</code>,
       before making a DNS query.
     </p>