Updated tab spacing.

test_data/design_ENCSR238SGC_SE.txt

-sample_id experiment_id biosample	factor	treatment	replicate	control_id	fastq_read1
-ENCBS844FSC ENCSR238SGC	limb	H3K4me1	None	1	ENCBS844FSC	ENCFF833BLU.fastq.gz
-ENCBS892NXC ENCSR238SGC	limb	H3K4me1	None	2	ENCBS892NXC	ENCFF646LXU.fastq.gz
-ENCBS844FSC ENCSR687ALB	limb	Control	None	1	ENCBS844FSC	ENCFF524CAC.fastq.gz
-ENCBS892NXC ENCSR687ALB	limb	Control	None	2	ENCBS892NXC	ENCFF163AJI.fastq.gz
+sample_id	experiment_id	biosample	factor	treatment	replicate	control_id	fastq_read1
+ENCBS844FSC	ENCSR238SGC	limb	H3K4me1	None	1	ENCBS844FSC	ENCFF833BLU.fastq.gz
+ENCBS892NXC	ENCSR238SGC	limb	H3K4me1	None	2	ENCBS892NXC	ENCFF646LXU.fastq.gz
+ENCBS844FSC	ENCSR687ALB	limb	Control	None	1	ENCBS844FSC	ENCFF524CAC.fastq.gz
+ENCBS892NXC	ENCSR687ALB	limb	Control	None	2	ENCBS892NXC	ENCFF163AJI.fastq.gz

test_data/design_ENCSR729LGA_PE.txt

-sample_id experiment_id biosample	factor	treatment	replicate	control_id	fastq_read1	fastq_read2
-ENCBS609QTY ENCSR729LGA	MCF-7	SP1	None	1	ENCBS216AOQ	ENCFF957SQS.fastq.gz	ENCFF582IOZ.fastq.gz
-ENCBS200IWR ENCSR729LGA	MCF-7	SP1	None	2	ENCBS034XKZ	ENCFF330MCZ.fastq.gz	ENCFF293YFE.fastq.gz
-ENCBS216AOQ ENCSR217LRF	MCF-7	Control	None	1	ENCBS216AOQ	ENCFF002DTU.fastq.gz	ENCFF002EFI.fastq.gz
-ENCBS034XKZ ENCSR217LRF	MCF-7	Control	None	2	ENCBS034XKZ	ENCFF002EFG.fastq.gz	ENCFF002DTS.fastq.gz
+sample_id	experiment_id	biosample	factor	treatment	replicate	control_id	fastq_read1	fastq_read2
+ENCBS609QTY	ENCSR729LGA	MCF-7	SP1	None	1	ENCBS216AOQ	ENCFF957SQS.fastq.gz	ENCFF582IOZ.fastq.gz
+ENCBS200IWR	ENCSR729LGA	MCF-7	SP1	None	2	ENCBS034XKZ	ENCFF330MCZ.fastq.gz	ENCFF293YFE.fastq.gz
+ENCBS216AOQ	ENCSR217LRF	MCF-7	Control	None	1	ENCBS216AOQ	ENCFF002DTU.fastq.gz	ENCFF002EFI.fastq.gz
+ENCBS034XKZ	ENCSR217LRF	MCF-7	Control	None	2	ENCBS034XKZ	ENCFF002EFG.fastq.gz	ENCFF002DTS.fastq.gz