[ET Trac] [Einstein Toolkit] #1889: correct finding normalization value for relerr compuation

[Einstein Toolkit]

#1889: correct finding normalization value for relerr compuation
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 Reporter:  rhaas   |       Owner:                     
     Type:  defect  |      Status:  new                
 Priority:  major   |   Milestone:                     
Component:  Cactus  |     Version:  development version
 Keywords:          |  
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 Before it would have taken the larger of the abs value of the new and
 old data of the last data set rather than the largest abs value of the
 new and old data of all the datasets.

 This will make relative errros smaller and will be particularly
 noticeable in cases where the last dataset was small or zero.

 This should get rid of the "Error, how did I get here" warnings (that
 really indicated an logic error).

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1889>
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