[Bug in test file]A little bug in InternalProvisionExceptionTest.java

<testcase classname="com.google.inject.internal.InternalProvisionExceptionTest" name="testSourceFormatting" time="    0.172">
     <failure message="value of: getMessage()
 diff    : (line contents match, but line-break characters differ)" type="value of">value of: getMessage()
 diff    : (line contents match, but line-break characters differ)
         at com.google.inject.internal.InternalProvisionExceptionTest.testSourceFormatting(InternalProvisionException    Test.java:35)

package com.google.inject.internal;

import static com.google.common.truth.Truth.assertThat;

import com.google.inject.internal.util.SourceProvider;
import junit.framework.TestCase;

public final class InternalProvisionExceptionTest extends TestCase {

  public void testSourceFormatting() {
    // Note that the duplicate source gets dropped as well as the unknown source
    assertThat(
            InternalProvisionException.create("An error")
                .addSource("Source1")
                .addSource(SourceProvider.UNKNOWN_SOURCE)
                .addSource("Source2")
                .addSource("Source2")
                .toProvisionException()
                .getMessage())
        .isEqualTo(
            ""
                + "Unable to provision, see the following errors:\n"
                + "\n"
                + "1) An error\n"
                + "  at Source1\n"
                + "  at Source2\n"
                + "\n"
                + "1 error");
  }
}