fix: decrement wa offsets

Author: gunjjoshi

lib/node_modules/@stdlib/fft/base/fftpack/lib/radf5.js

@@ -133,6 +133,10 @@ function radf5( ido, l1, cc, ccOffset, ch, chOffset, wa1, wa1Offset, wa2, wa2Off
 	// Parameter adjustments...
 	chOffset = 1 + ( ido * 6 );
 	ccOffset = 1 + ( ido * ( 1 + l1 ) );
+	wa1Offset -= 1;
+	wa2Offset -= 2;
+	wa3Offset -= 3;
+	wa4Offset -= 4;
 
 	// Function body:
 	for ( k = 1; k <= l1; k++ ) {