What is the value of integral

${\int}_{0}^{1}\mathrm{log}[(1+x{)}^{1/2}+(1-x{)}^{1/2}]dx$

? I'm applying integration by parts but couldn't find any substitution after couple of steps

${\int}_{0}^{1}\mathrm{log}[(1+x{)}^{1/2}+(1-x{)}^{1/2}]dx$

? I'm applying integration by parts but couldn't find any substitution after couple of steps