Make HttpConnectorTest for timeout less brittle.

Fixes: https://github.com/bazelbuild/bazel/issues/11569

RELNOTES: None
PiperOrigin-RevId: 315708471
diff --git a/src/test/java/com/google/devtools/build/lib/bazel/repository/downloader/HttpConnectorTest.java b/src/test/java/com/google/devtools/build/lib/bazel/repository/downloader/HttpConnectorTest.java
index b140783..deff81c 100644
--- a/src/test/java/com/google/devtools/build/lib/bazel/repository/downloader/HttpConnectorTest.java
+++ b/src/test/java/com/google/devtools/build/lib/bazel/repository/downloader/HttpConnectorTest.java
@@ -361,11 +361,7 @@
         fail("Should have thrown");
       } catch (IOException expected) {
         assertThat(expected).hasCauseThat().isInstanceOf(SocketTimeoutException.class);
-        assertThat(expected)
-            .hasCauseThat()
-            .hasMessageThat()
-            .ignoringCase()
-            .isEqualTo("connect timed out");
+        assertThat(expected).hasCauseThat().hasMessageThat().ignoringCase().contains("timed out");
       }
     }
   }