Lyrical mistake on the shirts?

Jinn

Saint
May 16, 2004
5,442
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Orlando, Florida USA
On the bloodbath shirts, the lyrics on the back [taken from Buried by the Dead] read:
Crawling through the soil and snow
Pitch-black grave cracks up from below
Screams measure a timeless echo
Hideous figures laugh and beckon

But on RTC and the RTC lyric booklet, the second line reads:
Pitch-black grave cracks up below.

Was this intentional or accidental?