hipo-utils is noisy

[baltzell]

Presumably not specific to this repo, but something in an upstream (private) repo, where at the end of every file it prints things like this:

Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 1 out of bounds for length 1
	at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64)
	at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70)
	at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:266)
	at java.base/java.util.Objects.checkIndex(Objects.java:359)
	at java.base/java.util.ArrayList.get(ArrayList.java:427)
	at org.jlab.jnp.hipo4.io.HipoReader.nextEvent(HipoReader.java:359)
	at org.jlab.jnp.hipo4.io.HipoReader.nextEvent(HipoReader.java:279)
	at org.jlab.jnp.hipo4.utils.HipoUtilities.showFile(HipoUtilities.java:200)
	at org.jlab.jnp.hipo4.utils.HipoUtilities.main(HipoUtilities.java:694)