rrs_upstream_history: fix get_upstream_info

'result' is a list of RecipeUpstream objects... drop legacy 'recipe, ru'
syntax. In the current code base, result.append((recipe, ru)) was
appending a tuple of the last value of 'recipe' (in 'for recipe_qry:' under
'for maintplan in maintplans:') and the RecipeUpstream object.

Fixes:
AttributeError: 'tuple' object has no attribute 'history'

Signed-off-by: Tim Orling <tim.orling@konsulko.com>

rrs/tools/rrs_upstream_history.py

@@ -143,7 +143,7 @@ def get_upstream_info(layerbranch, recipe_data, result):
     ru.no_update_reason = recipe_data.getVar('RECIPE_NO_UPDATE_REASON',
             True) or ''
 
-    result.append((recipe, ru))
+    result.append(ru)
 
 if __name__=="__main__":
     parser = optparse.OptionParser(usage = """%prog [options]""")