tmf.core: fix Callsite Aspect's name and description inversion

Change-Id: I82db714e992e1b03b3b13a0f2f953bedc1110d34
Signed-off-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/149211
Tested-by: CI Bot
Reviewed-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Tested-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
(cherry picked from commit 6bbacd0b7b506539b8e3be02e90d97dc38a315e3)
Reviewed-on: https://git.eclipse.org/r/149267
diff --git a/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/internal/tmf/core/aspect/messages.properties b/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/internal/tmf/core/aspect/messages.properties
index 8c94b2b..1eae729 100644
--- a/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/internal/tmf/core/aspect/messages.properties
+++ b/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/internal/tmf/core/aspect/messages.properties
@@ -11,5 +11,5 @@
 ###############################################################################
 
 
-TmfCallsiteAspect_description=Callsite
-TmfCallsiteAspect_name=The callsites of the event, its source location
+TmfCallsiteAspect_description=The callsites of the event, its source location
+TmfCallsiteAspect_name=Source