Clean up testNearestTag test

[gladed]

It sometimes fails but usually passes after a rebuild.

Failure looks like:

Your job ran 49 tests with 1 failure

    testNearestTag - com.gladed.androidgitversion.TagTest

junit.framework.ComparisonFailure: expected:<1.1-final[]> but was:<1.1-final[-3-55f2969]>
	at junit.framework.Assert.assertEquals(Assert.java:100)
	at junit.framework.TestCase.assertEquals(TestCase.java:261)
	at groovy.util.GroovyTestCase.assertEquals(GroovyTestCase.java:283)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)