--- a/test-data/out_paired.log	Tue Aug 29 17:37:07 2017 -0400
+++ b/test-data/out_paired.log	Wed Jan 10 19:10:01 2018 -0500
@@ -1,6 +1,6 @@
-# output generated by extract --bc-pattern=NNNXXX --stdin=input_read1.gz --read2-in=input_read2.gz --stdout out1.gz --read2-out=out2.gz --log=/tmp/tmpREDhtd/files/003/dataset_3773.dat
-# job started at Tue Aug 29 14:20:44 2017 on gaius -- 5913ff4c-b1d1-4f65-abec-66ca6684bdbd
-# pid: 21437, system: Linux 4.10.0-33-generic #37-Ubuntu SMP Fri Aug 11 10:55:28 UTC 2017 x86_64
+# output generated by extract --bc-pattern=NNNXXX --stdin=input_read1.gz --read2-in=input_read2.gz --stdout out1.gz --read2-out=out2.gz --log=/tmp/tmpAvWtMd/files/000/dataset_20.dat
+# job started at Wed Jan  3 17:06:39 2018 on tzk-ThinkPad-T450s -- 9eecaab6-9562-4b29-8a2e-ae6c1034a14c
+# pid: 22903, system: Linux 4.10.0-42-generic #46~16.04.1-Ubuntu SMP Mon Dec 4 15:57:59 UTC 2017 x86_64
 # blacklist                               : None
 # compresslevel                           : 6
 # error_correct_cell                      : False
@@ -21,16 +21,17 @@
 # read2_stdout                            : False
 # reads_subset                            : None
 # reconcile                               : False
+# retain_umi                              : None
 # short_help                              : None
 # stderr                                  : <_io.TextIOWrapper name='<stderr>' mode='w' encoding='UTF-8'>
 # stdin                                   : <_io.TextIOWrapper name='input_read1.gz' encoding='ascii'>
-# stdlog                                  : <_io.TextIOWrapper name='/tmp/tmpREDhtd/files/003/dataset_3773.dat' mode='a' encoding='UTF-8'>
+# stdlog                                  : <_io.TextIOWrapper name='/tmp/tmpAvWtMd/files/000/dataset_20.dat' mode='a' encoding='UTF-8'>
 # stdout                                  : <_io.TextIOWrapper name='out1.gz' encoding='ascii'>
 # timeit_file                             : None
 # timeit_header                           : None
 # timeit_name                             : all
 # whitelist                               : None
-2017-08-29 14:20:44,451 INFO Starting barcode extraction
-2017-08-29 14:20:44,461 INFO Input Reads: 100
-2017-08-29 14:20:44,461 INFO Reads output: 100
-# job finished in 0 seconds at Tue Aug 29 14:20:44 2017 --  0.73  0.05  0.00  0.00 -- 5913ff4c-b1d1-4f65-abec-66ca6684bdbd
+2018-01-03 17:06:39,365 INFO Starting barcode extraction
+2018-01-03 17:06:39,377 INFO Input Reads: 100
+2018-01-03 17:06:39,377 INFO Reads output: 100
+# job finished in 0 seconds at Wed Jan  3 17:06:39 2018 --  0.60  0.05  0.00  0.00 -- 9eecaab6-9562-4b29-8a2e-ae6c1034a14c