File r38/help/mkhelpu.sed2 artifact be9df4e4ab part of check-in ab67b20f90

s/Euler's/Euler/g
s/EULER'S/EULER/g
s/Euler constant can/Euler's constant can/g
s/Catalan's/Catalan/g
s/CATALAN'S/CATALAN/g
s/Khinchin's/Khinchin/g
s/KHINCHIN'S/KHINCHIN/g
s/Khinchin book/Khinchin's book/g
s/Jacobi's/Jacobi/g