add_data: Fix erroneous CSV generated by merge_csv

Remove RUN from the awk command, as RUN with '>' ended up prepending
LOG() output into the first line of the merged CSV file.

Special thanks to Drew Rotheram (@drotheram) for catching this!
See reviews at #105 for more information.

python/add_data.sh

@@ -324,7 +324,10 @@ merge_csv() {
 
   # The "awk" magic that merge CSV files while stripping duplicated headers.
   # See https://apple.stackexchange.com/questions/80611/merging-multiple-csv-files-without-merging-the-header
-  RUN awk '(NR == 1) || (FNR > 1)' "${input_files[@]}" > "$output_file"
+  # NOTE: DO NOT prepend RUN to the following awk command, as otherwise
+  #       the log would be the first line in the merged CSV file!
+  #       See reviews at #105 for more information.
+  awk '(NR == 1) || (FNR > 1)' "${input_files[@]}" > "$output_file"
 }
 
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