Code Duplication    Length = 7-7 lines in 2 locations

includes/diff/DiffEngine.php 2 locations

@@ 592-598 (lines=7) @@
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					$y = $x - $k - $delta;
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					$snake2 = 0;
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					while ( $x > 0 && $y > 0
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						&& $from[$x + $bottoml1_min_1] === $to[$y + $bottoml2_min_1]
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					) {
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						--$x;
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						--$y;
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						++$snake2;
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					}
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					$V1[$limit + $k] = $x;
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					// check to see if we can cut down our diagonal range
@@ 663-669 (lines=7) @@
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					$y = $x - $k - $delta;
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					$snake2 = 0;
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					while ( $x > 0 && $y > 0
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						&& $from[$x + $bottoml1_min_1] === $to[$y + $bottoml2_min_1]
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					) {
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						--$x;
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						--$y;
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						++$snake2;
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					}
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					$V1[$limit + $k] = $x;
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					if ( $k >= -$delta - $d && $k <= $d - $delta