fixing bug where Gate buffer_names was empty, but getBufferName was called - just return 'q'

Signed-off-by: Alex McCaskey <mccaskeyaj@ornl.gov>
1 job for xacc-devel in 4 minutes and 13 seconds (queued for 4 minutes and 51 seconds)
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passed docker build_devel #361325

00:04:13