Fix javadoc error:
../../../eclipse.pde.ui/ui/org.eclipse.pde.core/src/org/eclipse/pde/core/project/IBundleProjectService.java:31:
error: bad use of '>'
 * ServiceCaller.callOnce(getClass(), IBundleContextService.class,
(service) -> ...);


Change-Id: Ib0a03c55f01c09352d9bbee5a04e550566b259eb
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>