RELNOTES[INC]: genquery target locations are now relative to the work…

…space root when used with protobuf or XML outputs.

genquery was non-deterministic accross machines / workspace location without that setting.

--
MOS_MIGRATED_REVID=88711033

src/main/java/com/google/devtools/build/lib/rules/genquery/GenQuery.java

@@ -120,6 +120,9 @@ public ConfiguredTarget create(RuleContext ruleContext) throws InterruptedExcept
       return null;
     }
 
+    // force relative_locations to true so it has a deterministic output across machines.
+    queryOptions.relativeLocations = true;
+
     final byte[] result = executeQuery(ruleContext, queryOptions, getScope(ruleContext), query);
     if (result == null || ruleContext.hasErrors()) {
       return null;