fmt: format fails to parse

In https://github.com/QEF/q-e/blob/626d07a1cff06525d08d931a12672b28717f9932/PW/src/electrons.f90#L333:

PW/src(master) $ lfortran fmt electrons.f90 
input:333:50 syntax error: token type ')' is unexpected here
            /'     Harris-Foulkes estimate   =',0PF17.8,' Ry' )
                                                 ^
Parsing error: syntax error