apps/utils/mergekeys: 	merge_files() - bug fix in inner join when the next input key on the 	left is greater than the current.
apps/utils/mergekeys:
	merge_files() - bug fix in inner join when the next input key on the
	left is greater than the current.

patch by jason gessner.

google/crush-tools,lexsf/crush-tools,lexsf/crush-tools,lexsf/crush-tools,google/crush-tools,lexsf/crush-tools,google/crush-tools,google/crush-tools,lexsf/crush-tools,google/crush-tools,google/crush-tools,lexsf/crush-tools,lexsf/crush-tools,google/crush-tools