ftrace: Correct error with test implementation

I forgot the "L" needed for the Long casting and maven didn't appreciate
that ;)

Added it in.

Signed-off-by: Felix Kuhlmann <felix-kuhlmann@gmx.de>

Author: felix-khlmnn

tracetypes/org.eclipse.tracecompass.incubator.ftrace.core.tests/src/org/eclipse/tracecompass/incubator/ftrace/core/tests/event/FtraceFieldTest.java

@@ -207,7 +207,7 @@ public void testParseStartsWithParentheses() {
         assertEquals("sched_stat_runtime", field.getName());
 
         assertEquals("systemd-udevd", field.getContent().getFieldValue(String.class, "comm"));
-        assertEquals((Long) 65790, field.getContent().getFieldValue(Long.class, "runtime"));
+        assertEquals((Long) 65790L, field.getContent().getFieldValue(Long.class, "runtime"));
         assertEquals((Long) 6269486605L, field.getContent().getFieldValue(Long.class, "vruntime"));
     }