Fix broken summary indention

[sofurihafe]

Description

Test generated by Contest Estimator had summaries with bad formatting. This PR fixes the issue.
The problem was with mixing usage of print with '\n' inside and println.

There is a functional difference between the two. The first version outputs line breaks using the platform's preferred line separator. The second version outputs newline characters, which is likely to be inappropriate on Windows or Mac OS.
source

Fixes # (1667)

Type of Change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Automated Testing

utbot-samples.

Manual Scenario

Run contest estimator as described in the issue.
The following summaries will be generated, meaning that the indention problem was fixed.

///region FUZZER: SUCCESSFUL EXECUTIONS for method max(short[])

/**
 * @utbot.classUnderTest {@link com.google.common.primitives.Shorts}
 * @utbot.methodUnderTest {@link com.google.common.primitives.Shorts#max(short[])}
 */
@Test
public void testMaxReturnsZeroWithNonEmptyPrimitiveArray() {
    short[] shortArray = {java.lang.Short.MIN_VALUE, (short) 0, (short) 0};
    
    short actual = Shorts.max(shortArray);
    
    assertEquals((short) 0, actual);
}
///endregion