[Java] Fix typo.

Author: mjpt777

sbe-tool/src/test/java/uk/co/real_logic/sbe/TargetCodeGeneratorTest.java

@@ -32,7 +32,7 @@ public void shouldThrowOnNoTargetLanguage() throws Exception
     }
 
     @Test
-    public void shouldLoadAndInstatiateNonStandardTargetLanguage() throws Exception
+    public void shouldLoadAndInstantiateNonStandardTargetLanguage() throws Exception
     {
         final Ir ir = mock(Ir.class);
         final String outputDir = ".";